• Issue 4 volume 64
  • Issue 3 volume 64
  • Issue 2 volume 64
  • Issue 1 volume 64
Page : 192-209

Title : An Emerging Role of Cathelicidin Antimicrobial Peptides in Bone Biology

Author(s) : Suttichai Krisanaprakornkit

Keyword(s) : Antimicrobial peptide,Cathelicidin,LL-37,Nuclear factor of activated T-cells,Osteoblast,Osteoclast

Manuscript Type : Review Article (บทความปริทัศน์)

Page : 192-209

Cathelicidins are small cationic antimicrobial peptides, whose essential roles in several distinct
pathophysiological processes, including antimicrobial activity, cell proliferation and migration, immune-
regulatory function, angiogenesis and wound healing, have been thoroughly scrutinized in the
past two decades. In this review, several lines of new evidence are provided to show another novel
function of cathelicidins, including LL-37 in humans and a mouse ortholog of LL-37, i.e., murine
cathelicidin-related antimicrobial peptide (mCRAMP), in the inhibition of osteoclast formation and
function. Moreover, LL-37 can function to accelerate bone regeneration in a model of rat calvarial
bone defect. All of these latest findings point toward an emerging role of cathelicidins in bone biology.
With the implication of cathelicidins in bone metabolism, it is hoped that the cathelicidins will be
therapeutically beneficial for future clinical uses in dentistry, especially for bone regeneration in a
common bone-resorbing disease like periodontitis.
Page : 223-233

Title : The Effect of Clear Silicone Barrier and Polymerizing Depth on Hardness of Light-polymerized Composite Resin

Author(s) : Mali Palanuwech, Teerachai Limlawan

Keyword(s) : Composite resin,Knoop Hardness Number,Silicone barrier

Manuscript Type : Original Article (บทวิทยาการ)

Page : 223-233

The objective of this study was to determine the effect of silicone thickness and the polymerizing
depth of light-polymerized composite resin on the Knoop Hardness Number and the percentage of
bottom-top Knoop Hardness Number of the resin. There were 4 groups of composite resin specimen
with different thickness of clear silicone (0.0, 2.0, 4.0, and 6.0 mm). There are also 4 subgroups in each
group with different polymerizing depth (0.25, 0.2, 0.4, and 6.0 mm). Ten specimens were made for
each subgroup. Therefore, there were 160 specimens altogether. Knoop Hardness Numbers and percentage
of bottom-top Knoop Hardness Numbers of the composite resin were measured and analyzed
using a Two-way analysis of variance, and Tukey’s HSD test (p < 0.01). There were significant differences
(p < 0.01) among mean Knoop Hardness Numbers and percentage of bottom-top Knoop Hardness
Numbers in all groups. Only 3 data points not less than 80 % were detected. In conclusion, the thickness
of clear silicone of no more than 4.0 mm and the polymerizing depth of no more than 2.0 mm
were used for adequate polymerization.
Page : 234-242

Title : Effectiveness of Root Canal Irrigants from Mangosteen Pericarp Extracts with Papain and Propolis with Papain on Mixture of Streptococcus Gordonii and Enterococcus Faecalis

Author(s) : Pattama Chailertvanitkul, Anurak Phankhongsap, Apa Juntavee, Jomjai Peerapattana, Subin Puasiri

Keyword(s) : Enterococcus faecalis,Mangosteen pericarp extracts,Propolis extracts,Sodium hypochlorite,Streptococcus gordonii

Manuscript Type : Original Article (บทวิทยาการ)

Page : 234-242

The purpose of this study was to evaluate effectiveness of root canal irrigants from mangosteen
pericarp extracts with papain, propolis extracts with papain compared with 2.5 % sodium hypochlorite
on mixture of Streptococcus gordonii and Enterococcus faecalis in root canals. One hundred
and eight extract human single-rooted teeth were sectioned to obtain the root of 12 mm long.
The sectioned roots were sterilized by autoclaved then infected with mixture of S. gordonii and E.
faecalis, incubated at 37 ºC for 2 weeks. Two teeth were evaluated by bacterial penetration using
scanning electron microscope. Canals were instrumented using stepback technique until master
apical file was size 35, irrigated with 1 ml of the tested irrigant after each instrumentation. The specimens
were randomly distributed into 3 groups according to the irrigation type: Group I: teeth were
irrigated with mangosteen pericarp extracts with papain (N = 30), Group II: teeth were irrigated with
propolis extracts with papain (N = 30), Group III: teeth were irrigated with 2.5 % sodium hypochlorite
(N = 30). Control groups were divided into 5 teeth irrigated with 50 % dimethyl sulfoxide (DMSO), 5
teeth with mixture of 50 % DMSO and papain, 5 teeth with normal saline and 1 neither infected nor
irrigated tooth. Specimens were kept in 100 % humidity at 37 ºC for 24 hours. The dentine chips from
sterilized gates gridded drill were culture for 24 hours to determine the remaining colony forming
units. The results demonstrated that one tooth in the mangosteen pericarp extracts with papain had remaining bacteria,
no tooth from propolis extracts with papain and 2.5 % sodium hypochlorite showed Chi-square test indicated no statistically significant difference
(p = 0.564) in eradicating
mixture of S. gordonii and E. faecalis among root canal irrigants from mangosteen pericarp
extracts with papain, propolis extracts with papain and 2.5 % sodium hypochlorite. In conclusion
there was no difference in irradicating bacteria among three irrigants.
Page : 210-222

Title : Dental Management for Turner Syndrome: Review of the Literature and Case Report

Author(s) : Onauma Angwaravong, Kasamon Satchapong, Thidarat Angwarawong

Keyword(s) : Dental management,Oral,Turner syndrome

Manuscript Type : Case Report

Page : 210-222

Turner syndrome is the most common chromosomal abnormality in females. It is characterized
by anomalies of the X chromosome. The characteristic physical abnormalities include short stature,
sexual infantilism and learning disability. In addition, other systemic diseases found in Turner Syndrome
are heart disease, hypertension and hypothyroid. Oral manifestations are also observed, such as
micrognathia, retrognathia and thin enamel. The chromosome analysis is required for definitive diagnosis.
There are few articles concerning dental management for young patients with Turner syndrome. The
appropriate management usually requires a multidisciplinary approach. The purposes of this article are
review related literatures regarding the incidence, clinical features, diagnosis, complication, dental
management of Turner syndrome and case report.
Page : 243-255

Title : Factors Influencing Demand for Orthodontic Treatment in a Group of Secondary School Students in Bangkok

Author(s) : Pitraporn Atisook, Rattiya Chuacharoen

Keyword(s) : Demand for OT,Factors influencing demand for OT,Orthodontic treatment (OT)

Manuscript Type : Original Article (บทวิทยาการ)

Page : 243-255

Demand or self-perceived need for Orthodontic Treatment (OT) is increasing in Thailand as in many
other countries especially in adolescents, on which most OT is carried out. Planning of OT for adolescents
requires information on factors influencing the demand for OT; in Bangkok, these factors have not yet been
adequately studied. The objectives of this study were to assess the factors that influenced demand for OT
in a group of secondary school students in Bangkok as well as to compare the demand for OT between
genders. A cross-sectional study was conducted of 450 students aged 12 - 14 years in three government
secondary schools in Bangkok, Thailand. A constructed questionnaire was used to assess demand for OT
and factors influencing that demand. Most of the students (74.0 %) requested OT. Females demanded OT
more than males (male 66.1 % and female 78.7 %, p = 0.003). Genders, regular dental check-ups, awareness
of malocclusion and aesthetic reasons were factors influencing the demand for OT.
Page : 127-149

Title : Factors Related to Utilization of Dental Services during 4 - 6 Months of Pregnancy at Langsuan Hospital, Chumphon

Author(s) : Janpim Hintao, Jintana Rattana, Sukanya Tianviwat

Keyword(s) : Dental health behavior,Perceived oral health status,Pregnant women,Satisfaction,Utilization of dental services

Manuscript Type : Original Article (บทวิทยาการ)

Page : 127-149

A cross-sectional analytical study was conducted to determine the relationship between
utilization of dental services of pregnant women and some factors; oral health knowledge, attitude,
practices, perceived oral health, understanding and satisfaction of dental service. Data were collected
from dental service records and questionnaire for interviewing women with 25 pregnancy weeks
or more at Langsuan Hospital, Chumphon. The results showed that 86 pregnant women utilized
dental services and 75 women did not use dental services. Factors statistically related to utilization
of dental services using bivariate analysis included the knowledge of pregnancy gingivitis causing low
birth weight and emergency dental service at 7 - 9 months is acceptable, the mother’s history of
receiving dental service at Langsuan Hospital, the attitude of increased oral health care during pregnancy
due to the fear of effect of bad oral health on the fetus, perceived oral health problems,
perceived dental treatments, perceived need for treatment of oral diseases, and satisfaction on
dental appointment card. After adjusting the mother’s history of receiving dental service at Langsuan
Hospital, the factors that were still statistically related to utilization of dental services included the
attitude of increased oral health care during pregnancy due to the fear of effect of bad oral health
on the fetus (OR = 2.61) and perceived dental treatments (OR = 2.15).
Page : 148-158

Title : The Correlation of Dental Sealant on Permanent First Molar in Different Caries Status of Primary Teeth and Tooth Position with Caries Prevalence after 5 Years

Author(s) : Soison Tharasombat, Nuchanart Plengsringam

Keyword(s) : Dental sealant,Permanent first molar,Dental caries,Primary teeth status

Manuscript Type : Original Article (บทวิทยาการ)

Page : 148-158

The objective of this retrospective study was to evaluate the correlation of dental sealant on
permanent first molar in different caries status of primary teeth and tooth positions with caries
prevalence after 5 years. Secondary data was drawn from Yimsodsai Dekthaifundee project. The
samples were 920 first permanent molars of the 6th grade students in 2011 academic year as in a
responsibility of Pranangklao Hospital, Nonthaburi province. The result showed that sealed and nonsealed
molars, primary caries status and tooth position were statistically correlated with caries
prevalence (p = 0.012, p = 0.014, p = 0.000 respectively). Mandibular first molars in dmft ≥ 6 groups
with sealed status were statistically correlated with caries prevalence (p = 0.044). The caries incidence
of the sealed group was 0.53 times to the non-sealed group (OR = 0.53, 95 % CI 0.283 - 0.987) and
this program should be continued.
Page : 159-171

Title : Effectiveness of Silver Diamine Fluoride for Arresting Dental Caries in Primary Teeth - Optimal Frequency of Application: a Randomized Controlled Trial with 12-month Results

Author(s) : Prasit Wongsupa, Sukanya Tianviwat, Janpim Hintao, Patcharaporn Thippanya

Keyword(s) : Arrested dental caries,Silver diamine fluoride,Optimal frequency of application,A randomized controlled trial

Manuscript Type : Original Article (บทวิทยาการ)

Page : 159-171

The aim of this study was to compare the effectiveness of silver diamine fluoride (38 % SDF)
for arresting dental caries among different frequency of application. A double blind randomized
controlled trial was conducted among 295 children, aged 2 - 5 years who had at least one active
carious lesion on upper anterior teeth at child care centers and kindergartens at Chaleomprakiat and
Bokua districts, Nan. The children were divided into three groups of SDF application: (1) one time per
year; (2) two times per year and (3) three times per year and followed up every 6 month. The progression
of carious lesion was evaluated every 6 month for 12 months. The proportions of active
carious surfaces which turned to arrested carious surfaces among three groups at 6 months were 34.5
%, 38.0 % and 38.8 % and at 12 months were 53.2 %, 60.0 % and 84.5 %, respectively. The mean of
the arrested carious surfaces among three groups at 6 months was 2.2, 2.5 and 2.6 and at 12 months
was 4.6, 5.2 and 6.7. Group 3 times had significant better results than group 2 and 1 times. In conclusion,
the application of SDF 3 times per year provided effectiveness in dental caries arresting among
primary teeth better than group 2 and 1 times per year.
Page : 172-179

Title : In Vitro Stain Removal Capability of Household Vinegar as a Denture Cleaning Solution

Author(s) : Mr. Chaimongkon Peampring, Nechamon Chaiyanupong, Nawaporn Kositpantawong, Patomporn Suwanrattapoom, Yodkwan Treeratweerapong, Leelachart Prasert

Keyword(s) : Denture cleanser,Vinegar,Acrylic resin,Stain

Manuscript Type : Original Article (บทวิทยาการ)

Page : 172-179

Household vinegar consists of acetic acid, which is a chelating agent. Therefore, it has the
potential to remove coffee stains on acrylic resin surfaces. As a result, the purpose of this study was
to evaluate the capability of vinegar on removing coffee stains on acrylic resin surfaces. One hundred
and twenty heat-polymerized acrylic resin specimens with the dimensions of 20 x 50 x 2 mm were
stained using coffee solutions, then specimens were subjected to 4 stain removal methods (N = 30
each): immersion in distilled water for 8 hours (Group 1), immersion in 5 % vinegar for 8 hours (Group
2), ultrasonication in distilled water for 15 minutes (Group 3), and ultrasonication in vinegar for 15
minutes (Group 4). Stain removal ability was evaluated by determining two color difference values:
ΔE1 (comparing between stained specimens before and after stain removal procedures) and ΔE2
(comparing between the baseline specimens and after stain removal procedures). Data were analyzed
using One-way analysis of variances (ANOVA) and post-hoc Tukey’s HSD test at a confidence
level of 95 %. There was no statistically significant difference in ΔE1 values between Groups 1, 2 and
4 (p < 0.05). Group 3 showed a significant lower ΔE1 values than other groups. For ΔE2, the results
indicated that ΔE2 value in Group 1 is significantly lower than other groups. In conclusion, immersion
of acrylic denture base in vinegar or distilled water for 8 hours and ultrasonication in vinegar for 15
minutes showed the same result on stain removal ability. However, all coffee stains on acrylic resin
surfaces were not removed completely by all methods.
Page : 180-191

Title : A Prospective Study of Short Implant Stability in the Posterior Maxilla

Author(s) : Somchai Sessirisombat, Cholathee Verochana, Niyom Thamrongananskul, Soontra Panmekiate

Keyword(s) : Short implant,Stability,Resonance Frequency Analysis,RFA,ISQ

Manuscript Type : Original Article (บทวิทยาการ)

Page : 180-191

In partially edentulous patients who have inadequate bone height in posterior maxilla, sinus
lift surgery is a standard procedure to increase vertical bone volume before or together with implant
placement. However, some patients may have existing sinus problems or conditions that are contraindicated
for sinus lift surgery. Placement of short implants may be considered an alternative
treatment. Poor bone quality and quantity in the posterior maxilla play an important role in implant
stability, especially for short implants. The proper healing period and implant stability are utmost
important factors considered for the optimal timing of implant loading, and affect implant success
or failure. The objective of this study is to investigate short implant stability in the posterior maxilla
within a 4-month healing period. The stability of short implants was measured by Resonance Frequency
Analysis (RFA) at the time of placement and 2, 3, and 4 months after placement. The results
indicated that short implants with proper macro and micro architecture gained excellent stability
within 3 months.
Page : 59-70

Title : Vickers Microhardness Comparison of Bulk Fill Resin Composites in Various Depth

Author(s) : Nantawan Krajangta, Awiruth Klaisiri, Pinanong Toopsuwan, Thanyaphat Engboonmeskul, Autchariya Khosrisut

Keyword(s) : Bulk fill resin composite,Bulk fill technique,Vickers microhardness

Manuscript Type : Original Article (บทวิทยาการ)

Page : 59-70

This study aims to measure the Vickers microhardness (VHN) of two recently launched bulk fill resin composites (Tetric EvoCeramฎ bulk fill (TE bulk) and SonicFillTM Sonic-Activated bulk fill composite (SN bulk)) in comparison to conventional resin composite (Herculiteฎ Ultra nanohybrid composite (HU)) as the control group. A total of 30 semi-cylindrical specimens (6 mm height and 6 mm diameter) was prepared from three different materials. The VHN measurements were evaluated with a microhardness tester at the top surface and at depths of 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5 and 5.5 mm using a Vickers diamond indenter, applied 300 g for 15 seconds. The data was analyzed using one-way ANOVA. There were significant differences in the VHN between the three resin composites in every depth; SN bulk > TE bulk > HU. The highest VHN of TE bulk and HU was at top surface, while SN bulk was at 0.5 mm depth. The lowest VHN of all resin composites was at 5.5 mm depth. Acceptable curing (bottom to top microhardness ratio = 0.8) at 4.5 mm depth for SN bulk, 4 mm for TE bulk, and 3 mm for HU.
Page : 71-86

Title : Effect of Mother’s Parenting Style on Oral Care Behavior and Oral Health Status of Children Aged 7 - 8 Years

Author(s) : Angkana Thearmontree, Penpilai Phunleng

Keyword(s) : Parenting style,Mother’s oral health care for children,Children’s oral health status

Manuscript Type : Original Article (บทวิทยาการ)

Page : 71-86

This study was a cross-sectional analytical study which aimed to determine the effect of parenting style on oral care behavior, sweet consumption behavior and oral health status of children.The samples included 350 children aged 7 - 8 years, whose oral health status had been examined and their mothers were interviewed in the 6 control schools of the “Healthy Teeth for Southern Children Project”, Hatyai, Songkhla. The mothers were interviewed by telephone regarding their parenting style. The data concerning the children’s oral hygiene and sweet consumption behaviors as well as their oral health status (dmfs, dmft, DMFS, DMFT and PI were from the “Healthy Teeth for Southern Children Project”. The result revealed that the parenting style had no statistical significance towards the children’s oral health behavior for oral hygiene and sweet consumption behaviors as well as oral health status. However, the co-influence of both parenting style and mother’s educational level had statistical significance on children’s decayed, missing and filled surfaces in the permanent teeth (DMFS). In children whose mothers had a Bachelor’s degree or higher and were authoritarian parents, the DMFS was statistically significant higher than those who were permissive parents. Even though the parenting style does not affect the children’s oral health behaviors and oral health status, the parents should be adequately educated about the oral health care. Through the appropriate parenting style, the parents could nurture the right oral health care attitude to their children.
Page : 87-101

Title : Knowledge and Attitude Towards the Islamic Commandments and Oral Care Behavior of Schoolchildren in Private Islamic Religious Schools

Author(s) : Samerchit Pithpornchaiyakul, Narim Tokanee, Sukanya Tianviwat

Keyword(s) : Islamic commandments,Oral care behavior,Private Islamic religious schools

Manuscript Type : Original Article (บทวิทยาการ)

Page : 87-101

The objectives of this study were to determine the knowledge and attitude towards oral hygiene related to Islamic commandments and to assess the oral care behavior of schoolchildren in private Islamic religious schools in Ruso District, Narathiwat Province. This was a cross-sectional analytical study. Multistage sampling technique with the proportion of gender and class level was performed in 3 large private Islamic religious schools. A total of 292 students was selected and completed self-administered questionnaires about knowledge and attitude towards oral hygiene related to Islamic commandments and oral care behavior in Muslim context. The results revealed that students had low scores on knowledge of the oral hygiene related to Islamic commandments (mean scores 3.88 ± 1.40 from total 10), and appropriate attitude towards mentioned commandments (67 - 92 %). Oral care behavior on tooth brushing at least 2 times a day was 65.4 % and most of those who reported frequent tooth brushing brushed their teeth in the morning and spent at least 2 minutes. In addition, 7 - 51 % of the respondents used extra tooth cleaning devices or methods. Knowledge of the Islamic commandments about the benefits of tooth brushing, attitude of Islamic commandments towards cleanliness and application of Islamic commandments on tooth brushing were significantly associated with tooth brushing frequency. Oral health personnel might integrate oral hygiene related Islamic commandments in oral health promotion to improve the oral health of schoolchildren in the private Islamic religious schools.
Page : 102-112

Title : Antimicrobial Activity of Crofton Weed (Eupatorium Adenophorum Spreng) Oil against Caries-Related Bacteria and Oral Candida Species

Author(s) : Panida Thanyasrisung, Piyachat Chuysinuan, Krittika Koolkaew, Jindanuch Brahmsakha Na Sakolnakorn, Pitt Supaphol

Keyword(s) : Antimicrobial activity,Essential oil,Eupatorium adenophorum Spreng,Cariogenic bacteria,Oral Candida species

Manuscript Type : Original Article (บทวิทยาการ)

Page : 102-112

This study aimed to demonstrate the antimicrobial activity of crofton weed oil against cariogenic
bacteria and oral Candida species. The antimicrobial sensitivity testing was determined by a disk diffusion method against Streptococcus mutans, Actinomyces viscosus, Lactobacillus casei and oral Candida species: Candida albicans, Candida glabrata, Candida krusei, Candida tropicalis, Candida parapsilosis and Candida dubliniensis. Additionally, scanning electron microscopy (SEM) was used to investigate microbial ultra-structure alteration after the oil treatment. The oil exhibited similar antibacterial activity as 0.2 % chlorhexidine gluconate (0.2 % CHX) against all tested bacterial strains. The zones of inhibition produced by the oil against S. mutans, A. viscosus and L. casei were 11.1 ± 1.05 mm 18.7 ± 1.81 mm and 10.4 ± 1.55, respectively. However, 0.2 % CHX had greater antifungal activity against C. glabrata, C. krusei, C. parapsilosis and C. dubliniensis than the oil. Neither reagent demonstrated antifungal effect on C. albicans. Unexpectedly, the antifungal effect on C. tropicalis of the oil (19.0 ± 1.00 mm) was nearly two folds higher than that of 0.2 % CHX (11.0 ± 0.0 mm). SEM of microbial cells treated with the oil showed perforations on the cell surface or alteration of cells shape. Crofton weed oil exhibited antimicrobial activities against caries-related bacteria and most oral Candida species, especially C. tropicalis, by affecting microbial cell surface.
Page : 113-125

Title : Role of Bone Morphogenetic Protein 4 in Tooth Development and Regeneration

Author(s) : Waleerat Sukarawan, Thanaphum Osathanon

Keyword(s) : Bone morphogenetic protein 4,Tooth development,Tooth regeneration

Manuscript Type : Review Article (บทความปริทัศน์)

Page : 113-125

Tooth development is regulated by the sequential and reciprocal interactions between dental
epithelial and dental mesenchymal tissues. Several embryonic developmental signalings are used repetitively at different, advanced stages of tooth synthesis. Thus, in order to investigate the potential of tooth regeneration, the knowledge of underlying mechanism is indeed necessitated. Bone morphogenetic protein 4 (Bmp4) was expressed in various stages during tooth development in several investigated species. In this article, the roles of Bmp4 were discussed in different aspects regarding to the initiation molecule, the morphogen during tooth developmental stages, and the possible function in odontoblastic, and ameloblastic differentiation. The potential utilization of Bmp4 in tooth regeneration study was also discussed.
Page : 1-13

Title : Body Weight, Complication, Satisfaction and Other Effects from Using Acrylic and Polyvinyl Obturators in Complete Unilateral Cleft Lip and Palate Infants

Author(s) : Wandee Palanuparp, Sirichai Thammachartaree, Pimnaraporn Putongkam

Keyword(s) : Acrylic obturator,Body weight gained,Complication,Polyvinyl obturator,Satisfaction

Manuscript Type : Original Article (บทวิทยาการ)

Page : 1-13

The objectives of this study were to compare the body weight gained in infants with
complete unilateral cleft lip and palate, complication, satisfaction of parents and plastic surgeon and other effects between those assigned acrylic obturator and polyvinyl obturator. The samples were 36 complete unilateral cleft lip and palate patients (aged between 1 - 26 days, mean 6.5 days): 20 in the control group and 16 in the experimental group. Acrylic obturator was used in the control group while the polyvinyl obturator was used in the experimental group. The patients were treated by the same protocol until they met the requirements for lip surgery at the age of 3 - 4 months. Body weight gained between pre and post-treatment, complications and satisfaction from parents and plastic surgeon were statistically analyzed. The body weight gained showed no statistically significant differences between the two groups using analysis of covariance (ANCOVA). Complication and satisfaction from parents and plastic surgeon were analyzed by the Chi-square test, Fisher’s exact test, t-test and Mann-Whitney U test and showed that there were no statistically significant differences between two types of obturator, except for post
inserted ulceration and number of appointments. The cost of polyvinyl obturator is less than that of the acrylic obturator. These polyvinyl obturators may be the treatment of choice. It avoids the risk of taking an impression in a young baby and also reduces the construction time of an obturator.
Page : 14-25

Title : Comparison of Physical Properties and Satisfaction of a Fabricated and a Commercial Gingival Suture Pad for Suturing Practice

Author(s) : Butsakorn Akarawatcharangura, Siranan Phrammanee, Prisana Pripatnanont

Keyword(s) : Suture pad,Gingival suture pad,Rubber,Universal Testing Machine

Manuscript Type : Original Article (บทวิทยาการ)

Page : 14-25

This study aimed to fabricate the gingival suture pad from a natural rubber to have physical properties; tensile strength, tear strength and hardness similar to the commercial suture pad for surgicalpractice of a dental student.This study consisted
of 3 main steps as fabrication of suture pad, physical property testing by Universal testing machine and Shore A durometer, and satisfaction questionnaire of suturing practice. The study was divided into 4 groups; experimental group, group 1: basic
formula, group 2: reduced sulphur formula, group 3: increase stirring time formula,
group 4: commercial gingival suture pad as a control group. Fabricated gingival suture pad has the same thickness as control. Physical property test showed that the gingival suture pad from the natural rubber had statistically different tensile strength, tear strength and hardness from the control. Suturing practice test showed highest overall satisfaction score in the control 79.2 %, then group 3, 2 and 1 (57.6 % ,52.5 % and
49.1 % respectively). There was no statistical difference in satisfaction of strength among 4 groups and no statistical difference in satisfaction of ductility and handling between group 3 and the control. Although some of physical properties of the fabricated gingival suture pad were different from the commercial suture pad, it is still useful for dentists and medical persons to help improving their surgical skill. The gingival suture pad should be developed to decrease hardness and increase elongation of material.
Page : 26-46

Title : Oral Health-Related Quality of Life among Elderly Complete Denture Wearers and Its Associations with Denture Quality and Masticatory Efficiency Assessed by the-Thai version of OHIP-EDENT

Author(s) : Pimwipa Setthaworaphan, Songchai Thitasomakul, Paitoon Daosodsai

Keyword(s) : Denture Quality,Edentulous elderly people,OHIP-EDENT

Manuscript Type : Original Article (บทวิทยาการ)

Page : 26-46

Losing teeth is a major problem affecting the health of the elderly. Providing complete dentures can rehabilitate for better quality of life. The aims of the study were to develop Thai oral health-related quality of life (OHRQoL) questionnaire for measuring the OHRQoL of the elderly complete denture wearers and to determine quality and masticatory efficiency. This was correlated with overall denture satisfaction and OHRQoL using a cross-sectional study. Sampling elderly complete denture wearers from dental treatment records in both public and private dental clinics in Nayong district, Trang province gave a total of 155 subjects. Data collection consisted of demographic data, denture quality, masticatory efficiency and  OHRQoL. The English version of the Oral Health Impact Profile for Edentulous Patients (OHIP-EDENT) questionnaire was used to assess OHRQoL by cross-cultural adaptation into Southern Thai dialect questionnaire. The exploratory factor analysis was conducted to test the construct validity to be 13-item Thai questionnaire in 4 domains which are 1) functional limitation 2) social disability 3) emotional control disability and 4) denture discomfort. The results reveal that the majority of the elderly (80%) had good quality dentures and had high masticatory efficiency. 24.0%, 53.9% and 22.1% of the elderly had good, moderate and poor OHRQoL, respectively.  Approximately 70% of the elderly had high levels of overall denture satisfaction. Those who had high masticatory efficiency and high stability of lower denture, had good overall denture satisfaction (p < 0.05), and that related to high OHRQoL of the elderly complete denture wearers. In conclusion, the developed questionnaire can be used to assess the OHRQoL and the majority of the elderly people had moderate to high OHRQoL. The overall denture satisfaction and OHRQoL were related to denture quality and masticatory efficiency.
Page : 47-58

Title : Evaluation of School Oral Health Preventive Program on Adjunct Mobile Dental Service for Schoolchildren in the South of Thailand

Author(s) : Sukanya Tianviwat, Stephen Birch, Virasakdi Chongsuvivatwong

Keyword(s) : Oral health preventive program,Dental health status,Mobile dental service,Children

Manuscript Type : Original Article (บทวิทยาการ)

Page : 47-58

The objective of this study was to compare ability to avert caries problems in Thai schoolchildren from school oral health preventive program with and without mobile dental services. Dental survey in primary schools in Songkhla served by different access of dental services was performed based on WHO basic oral health survey methods. Multistage cluster sampling was done and got sample size of 711 children. Descriptive statistics and clustered logistic regression, which adjusted with design effect, was used. Two outcomes of school oral health preventive program were analyzed. The success of the program was measured as percentage of sound teeth (ST) among all permanent teeth (T). The failure of the program was the number of caries experienced teeth (DMFT). The respective percentages of the outcomes were 94.8 and 5.2 of the teeth in the children served by hospital-based services, and 93.9 and 6.1 in the combination of hospital and school-based service. From clustered logistic regression modeling, there was no significant difference of outcome between two access groups. In conclusion, adjunct mobile dental service did not improve effect of school oral health preventive program.
Page : 1-12

Title : พฤติกรรมการบริโภคอาหารหวานของเด็กไทยอายุต่ำกว่า 5 ปี และความสัมพันธ์กับปัญหาฟันผุและโรคอ้วน

Author(s) : Sunee Wongkongkathep, Piyada Prasertsom, Khanit Rattanarungsima, Angsana Rityoue

Keyword(s) : Key words: dental caries,obesity,sugary eating habit

Manuscript Type : Original Article (บทวิทยาการ)

Page : 1-12

The objectives of this study were to describe dental caries prevalence, nutritional status and to identify the correlation of sugary eating habit with dental caries and obesity among Thai children under the age of five. Data were collected by interviewing caregivers who brought their children to Well Baby Clinics for vaccination or to day care centers in 255 community hospitals in 20 provinces. This study surveyed demongraphics, all sorts of food taken in the last week, snacks and drinks taken in the past 24 hours with their treasons. And dental caries examination was performed in 4,043 children. Data analyses included Chi-square test, Analysis of Variance (ANOVA) and forward stepwise logistic regression statistics. Results revealed that actual caregivers were mothers only 41.1% finished primary schools (53.7%), almost all resided inrural areas (92.3%), and three-fourth of them had family income less than 10,000 Bath per month (75.6%). The prevalence rates of dental caries and obesity were 47.9% and 9.3%, respectively. Sixteen percent of the children pertained regular sugary eating habit. Average daily sugar intake from snacks and drinks was equivalent to 30.4 grams. Half of the samples (51%) had sugar intake less than the standard (24 grams per day). Entire 24 hour snacks and drinks were summed up to 13,634 items including fruits (17.5%), snacks (37.2%), sugar-free drinks (15.4%) and sugar drinks (29.9%). It was also found that regular sweet consumption (OR=1.866,95%CI,1.573-2.212,p = .000), frequency of snacks and drinks >5 items per day (OR=1.161,95%CI,1.008-1.338, p=.039) and amount of sugar from snack and drinks >40 grams per day (OR=1.201,95%CI=1.039-1.389, p=.013) were assoicated with child dental caries. However, only amount of sugar from snack and drinks >40 grams per day was found to be associated with obesity (p=.013).