Holmgren, CJ

Lo, ECM

Journal of Dental Research

HKU Scholars Hub

Title Provision of Atraumatic Restorative Treatment (ART) in Chinesepreschool children - one year resultsAuthor(s) Lo, ECM; Holmgren, CJCitation13th Annual Scientific Meeting of the International Associationfor Dental Research (Southeast Asian Division), Kuala Lumpur,Malaysia, 1-3 October, 1998. In Journal of Dental Research, 1999,v. 78 n. 5, p. 1175 Abstract no. 47Issued Date 1999URL http://hdl.handle.net/10722/53285Rights Creative Commons: Attribution 3.0 Hong Kong LicenseIDent Res 78(5) 1999 Divisional Abstracts: Southeast Asian Division 117541 Prevalence of and risk factors for dental fear amnong Chtnese chldrlcle. 42 Utilization of dental care in the Thai Social Security Plan.I D.S.H. FUNG*, M.C.M. WONG and E. SCHWARZ (Faculty of Dentistry, The C. HOSANGUAN*, S. TAWEET-HAWORNSAWAT, S. ITSARAVIRIYAKULUniversity of Hong Kong). (Chulalongkorn Univ., Thailand)Recet enudies have shown that dental fear may leadt to avoidance of dentiasty. Vesy often such fear isacquired during childhood. Therefore, a survey wan conducted to study the dental fear of Hong Kong Basic dental benefits were added to the Thai Social Security scheme in Januarychildren in 1996, and the resalts have been preseted. A prelimninasy study of the prevaence of and factors 1997. The purpose of this study was to investigate patterns of dental care utilization amongaffecting dental fear among Chinese students is Conghua, PRC wan also conducted in June 1996 using the beneficiaries during the first year under the Dental Social Security plan. Questionnairesquestionaaire consaructed for the Hong Kong children with minor modifications. 254 primmy 6 students were mailed to a probability sample of 723 employees working in Bangkok Metropolitan.wereseresurveyed, %byswith3%g5ls%anh9ysofand be43% Igirla,soldandeme96%FSof 33thomletdbeingnna11-13r reyenrsivngold.sonTheae mean. CoFThSreultscore (15-item Childlrens Fear Survey Schedale-Dental Subscale) for the PRC children was 29.96±8.71 wit 332hompeedqut4oestionnariresw sererenturne girvingsatreasponserae of 4599%. Thec result16.1% ofthem having high dental fear (>mnean+lISD). This wan simiilar to the result of the Hong Kong tudy hwdta 4 fbnfcaisue eta evcsa es nei 97 hc a(n-3596), with mean CFSS-DS scoreof29.39±9.15, and lS.5%ofthe studentshavinghigh denta few significant increase in utilization rate compared to that in 1996 (45.1%, p=0.003). Type ofAnalysis of Covariance (ANCOVA) indicated tha among the PRC children oaly the children's geneaul fear dental services most frequently used included scaling (52.3%), fillings (48.90/a), andlevel and the perception of their own teeth when comnpared with their friends, had significant effect on their extraction (33.5%). About 34.7% of beneficiaries had their dental expenses reimbursed bylevel of dental fear(p<0.O00l). All other factors were elinsinated from the moedl. On the other hand the Hong the Office of Social Security, with an average amount of 309 baht. Based on logisticKong result showed that apart from these two factors (general fea and perception of their own temeth), the regression analysis, factors found to be significantly associated with increased use of dentalchildren's dental fear wan also significantly correlated with: their feelings towards last dental visit, lheir pastunpleasant experiences in dental clinics and the recollection of their parets, siblings and friends mientioning services were awareness of dental benefits (OR=2.57) and perceived impact of dentalabout fear of seeing the dentist (p<0.001). Since differet factors have been shown to affect the dental ferproblems (OR"'2.63). It is concluded that the addition of dental bene-fits in the Sociallevel of chidren in Honez Kona and the PRC farther studies should be conducted to investlat the Security plan resulted in -an increased use of dental services among beneficiaries.stimilarities and differens between the two gonulaton groanEffect of Smear Layer Removal on Sealability of Two Sealers. AA Effectivesess of Inlracanal Medicamentsein lnhibitmn~Root Resorption in ReplantedS.RAVINDRANATH* (Faculty of Dentistry, University Malaya, Kuala Maluciors MlysiaHndSt. H.H. MESSER2- C.H. SIAR and L.H. SAW'('University ofLumpur, Malaysia). Maaa2aayi n The University of Melbourne, Australia).The removal of smear layer from the root canal walls following istatrumentation has bseen the object `Mielicive6iffectiveness of antibacterial and anti-inflamenatory agents in inttracanal enedicamnset inof numnerous investigations. The purpose of this study was to evaluate the effect of smear layer inhibiting externa root resoeption, which develops following avulsion and replantation, merits investgationThis study compared the periodontal resoptive response to two intracanal medicaments followingremoval on the sealing ability of two different sealers. Sixty four freshsly extracted maxillary central replantation of inciosm in eight Macaea fascicutaris monkeys. T'he teeth were extracted, stored thy for t5incisors were selected and drvided into 2 groups (I&2). Group I teeth were used as control with the minstes and then replated. After 11I days, root cmals in the two experimental groups were medicated withsmear layer intact. In the giroup 2 teeth, the smear layer was removed using 15% EDTA and 5.25% either a calciutm hydroxide paste (Pulpdent) or an antibiotic/corticosiemoid (AC) paste (Ledennix), whileNaOCI as irripants. Two teeth from each group were subjected tosanig electron microscopy teeth in the control group were left enftrated. Two maxillasy incinors (central and lateral) in each animalanalysis to confirm the presence or absence of smear layer. The remaining 30 teeth in each group were treated with one medficament and the cotntraateral incisors were trated with the other medicunet orwere subdivided into groups IA, IlB, 2A and 2B. All teeth were obturted with laterally condensed were usued as untreated controls. Mandibulwr incisors were included as additional controls. The atnimalsguntapercha techniquc. In groups IA & 2A, zinc oxide eugenol was used as a sealer and igroups were sacrificed after eight weeks of canal medication. Block specimens containing the teeth were prepardlB & 2B Endomethasone eugenol was used as sealer. Leakage was assssed using 2% methylene for histologic evaluation. One net of thre S pm cross-sections cut every 500 gmn was evaluated. Ablue solution. After 7 days the teeth were sectioned vertically and linear measuremients of dye histmehmti analysis according to the method of Andreasen JO (Endod Dent Traumatol 3: 269487,penetration was measurecL The nmean leakage values for group IA was 6.5333, group 2A-3.6333, 1987) examined the following parameters: periodontal inflammation and surface, inflammnatory andgroup IB-3.9333 and group 2B-2.3333. Statistical analysis using student's T test was done. The replacement resorption.Both experimental groups showed significantly less inflammatory resorption (pr0O0S, Mana-Whimey test),values obtained were for groups IA & 2A t -3.6106, p'<0.05, for groups lB & 2B t -3.7238, with the Ca(OH)2 group having a resorption index of 0.7(%) ± .S(S.D.) and the AC group having an indexp<0.05, Groups IA & lB t -3. 1271, p<0.05 and groups 2A & 2B t =3.4943, p<0.05. Significant of 0.6 ± 1.6 as compared to the control with an index of 11.6 ±10.3. Although the Ca(OH)2 group showeddifference was observed when the smear layer was removed and also when Endomethasone was - increas and the AC group adecrease in replacement resorption, the differences with the control wer notused as sealer. The leakase in the speciens without smear layer was significantlv eue significant. The readsl indicate that calcium hydroxid inhibits 2dv infiaatos resorption andctirresoeccve of the sealer used. Endomethasne eugenol had less tendenc for Ileakas compreMd to rEnplacament resoenion. while the antibiotic/corticosteoid medicament May inhibitboth.zinc oxide euctenol. Supported by the University of Malaya, P245/96 and P287/97.45 Comparatve Healing When Diaket & Mfineaul Trioixide Aggregate are Used 46Clinical Evaluation of Compomer in Primary Tenth: 3-years' results4in Periradicular Surgery J.D. REGAN, J.L. GUTMANN,* D.E. 4 LEUNG SK, WEI SHY*and HSE KMY, Paediatric Dentistry,WITHERSPOON (Baylor College of Dentistry - Texan A & M University The University of Hong Kong.System,~Dallas, Texas, USA) The clinical performances of a compomer (Dyract) and a hybrid resin composite (PrismsThe aim ofthissuywstinetgtthhelnoftepraduartisauea when ehrteTPH) were compared. 36 children (aged 4-7 years) with 60 bilateral matched pairs ofP04-vinyl resK used as root-md filITA ~ ~~~~~~~~curious primary teeth were included. For each pair, one was restored with Dyract and thepolyvinyl resn,Dgicale rort cMneal trixien AgrgtesMAw reefrewoj uslaed rot-ndibulli3other with TPH. Colour matching, marginal discoloration, marginal integrity, presence ofmate rial. onsurican rocanalo trbeatments weeprformed amrsedonrnol loated massndibuarl3 recurrent caries and anatomic form were evaluated with the USPHS criteria at baselineand 4dpromot-a ind seviten dogs Subswthequhentyr h root-ends. were rweedvanudultrasonicaly (within 2 weeks) and after 6, 12, 2,4 and 36 months of clinical services. At 36 months, 86PreparedWrot-men caintisw erefsooicll inertiedwith eihriiked Aealing was evahsted atrai60-omy restorations were evaluated. The cumulative failure rats for Dyract and Prisma TPH wasot-surgial timesinereval.uHItologial sectXIOOw herestiewithn e sither H& feoreMssncebtrnchroe 8.9% and 15.2% respectively. All the failed restorations had been placed in class IIsanAand setonswhepreneoinaluated atX ionor Thsessfremasiono stailstDicalkiferetnncebetwe hen cavities-There was a significant difference between the two restoratives in marginalmaterials or the preenceof iflammationor abneea formation Whilstiscketdatonorated fadscoloratiod(A9fa: 4e7peandi69lrespectiely, p =0.4 a1*),nmaginaleinterityAAffagreatest amnount of new bone formed in the body of the sugical wound and adjacent to the reseced 52.3% and 73.8% respectively, p =0.0487) and occlusal wear performance (p -c0.0001t)root-end, the difference were not significant (at ar - 0.05). Likewise, greate reformation of th The average mean wear value at 36 months for Dyract and TPH were 172.5pm and 96.7pmperiodontal ligament was seen in the Diaketspecimenn but the difference was not signficant (p = respectively. The 36 months clinical'performnances of Prisms TPH was better than Dyract in0.2666). Sisaificanty more bone formed adjacent to the MTA filling materia (p - 0.0284). Whilst marginal discoloration, marginal integrity and occlusal wear performances. In colourceme enntumo waso seenm in cosome sections,r nd n formingsiioa octntmacnun,uaeulayer f oversanandatinc odirectat appositione tto otheHMTA materia and reseced dentin, this finding was variable and unpredictable, There was no matchningdecrreincoteofeanesohandlanatomi form,t Dyacdfntewas-comprbetoRinr teehatof TPHsignficant difference between the MTA and Diaketfor cementum deponition. T.vlb i an cosuidaberateationofte reasetofaivh anein lfofDr _and fnteetlife-time stfdwasmartet,itlisthe priradiculsr tisses forboth materal was favourable and the noenial for complete mgm=ion asiblatenivrsoaiemtralf rnoiayteh Ti td a atalOf the periodontMimadiacent to both maeIa was demonstraed, This research was partially funded supported by Dentsply Asia.) (*: Fisher exact test; t Paired T-test)by the American Association of Endodontists Foundation.47 Provision of Atraumatic Restorative Treatment (ART) in Chinese 48 Antihacteral PropertiesofLocal Plant Etraircts Against Stlotted Plaqute Baateria.47 pre-school children - one year results. 48Fathilah, AR.*, Othnsan, Y., Rahin, ZH.(University of Malaya. 00 ulE.C.M. LO, C.J. HOLMGREN (Faculty of Dentistry, University of Lumpar, Malaysia)Hong Kong)~~~~~~~~~~~~~~~~~~~~~~~~~Theselection of antimiicrobial agents for plaque control requires en understanding of the microorganismsResults of early studies on ART (a technique which based on caries excavation With invoived, the agents used and their effects en both the bactera and the host. Many plant estracis foundhand instruments followed by restoration with glass ionomer) showed that the survival locally hive bees reponed to hive sorme soothing sand healing effect on subject suffering from tontliwhesrates of fittings placed in permanent teeth were satisfactory but that for fillings placed in and periodonta complaints. In ihis study, nitracts froes two local phats (Puisas ip. and Piper Sp.) Werprimary teeth were lower. This study was conducted among pre-school children to scree-ned fortlseir antimicrobial reaponseagainst sveralpisquebacteria. CrWade waerxoact ofrhisianmesassess the survival rate of ART fillings placed under real life situation in China using a leaves or sans of the plants were prepared. The deoctioens were then aliquoted into vials and vananewer material. A total of 170 ART fillings were placed in the primary teeth of 95 children apis-dried for fonher analyasis & mnst S smgnt and Actimmnyesu sp, the mess commnon esily colonizerof the supeagingival enamel surfoce were selectd foe susceptibility ftens agains din aruat. Tim tea wanaged 3-6 years by final-year dental students from the University of Hong Kong in a perometd by inoculatinga standard agar mediumwith a suspension of aulated bacteia end applyingdiskskindergarten in southern China using Kelac-Molar (ESPE). Another 509 ART fittings impregased with a known concestraune of the venous maracsta PoCowing an i8-24 hear incubetioswere placed using the same material in 374 children aged 3-4 years by local dentists. period, inhibited growth zones around the disk were noetm and rmeasured. The LDm0 fee fth esrcaw wasThe fillings were evaluated by two calibrated examiners every 6 months. Over 90% of calculated. Rslt.ais obtinned sheowed aw=eebihldy ofEPpran nigig selected bactera is in the order of&the fittingsc weregvauae at the 12mntfolwu.Te1- nhsuivlresfte-ifi.i<V -i.isi < Actlsesz -nwh.ie for Puidi-ianitinS -giu < Afinesy. -p < Vmif

Provision of Atraumatic Restorative Treatment (ART) in Chinese preschool children - one year results

http://hub.hku.hk/bitstream/10722/53285/1/47724.pdf

Provision of Atraumatic Restorative Treatment (ART) in Chinese preschool children - one year results

Abstract

Similar works

Full text

Available Versions

HKU Scholars Hub