MyMedR

Fulltext An ex-vivo comparative study of root-end marginal adaptation using grey mineral trioxide aggregate, white mineral trioxide aggregate, and Portland cement under scanning electron microscopy

Baranwal AK, Paul ML, Mazumdar D, Adhikari HD, Vyavahare NK, Jhajharia K

J Conserv Dent, 2015 Sep-Oct;18(5):399-404.

PMID: 26430305 DOI: 10.4103/0972-0707.164054

Where nonsurgical endodontic intervention is not possible, or it will not solve the problem, surgical endodontic treatment must be considered. A major cause of surgical endodontic failures is an inadequate apical seal, so the use of the suitable substance as root-end filling material that prevents egress of potential contaminants into periapical tissue is very critical.

Matched MeSH terms: Tooth Root

Enhanced post crown retention in resin composite-reinforced, compromised, root-filled teeth: a case report

Lui JL

Quintessence Int, 1999 Sep;30(9):601-6.

PMID: 10765865

The introduction of an intraradicular composite reinforcing technique, in conjunction with the reestablishment of matching post canal spaces, has allowed compromised, root-filled teeth to be restored with functional, esthetic post crowns. This clinical case report suggests that reconstituted post canals, in accurately adapting to passive, parallel-sided, matching, and well-fitting posts, can enhance the retention of post crowns. Other factors of clinical importance relating to the resin-reinforced technique are discussed, including fracture resistance, depth of polymerization, dentin adhesion, polymerization shrinkage, and coronal microleakage.

Matched MeSH terms: Tooth Fractures/therapy; Tooth, Nonvital/therapy*

Familial cases of missing mandibular incisor: three case presentations

Chai WL, Ngeow WC

Dent Update, 1999 Sep;26(7):298-302.

PMID: 10765775

Hypodontia is the congenital absence of one or more teeth because of agenesis. The most commonly missing teeth are the third molars, the maxillary lateral incisors and the second premolars. Cases are presented of three patients with a missing mandibular incisor.

Matched MeSH terms: Tooth Eruption, Ectopic/complications; Tooth, Impacted/complications

A case report of reattachment of fractured root fragment and resin-composite reinforcement in a compromised endodontically treated root

Lui JL

Dent Traumatol, 2001 Oct;17(5):227-30.

PMID: 11678543

The composite reinforcement technique has been used clinically to salvage damaged root-filled teeth compromised by caries, trauma, developmental abnormalities, internal resorption and iatrogenic causes. This clinical case report describes the use of the technique to reattach a fractured fragment in a compromised endodontically treated root besides reinforcing it for continued function in the mouth. Factors of clinical importance related to this additional application; including reattachment of tooth fragments, post crown retention, coronal microleakage and fracture resistance and strength, are also briefly discussed.

Matched MeSH terms: Tooth Fractures/therapy*; Tooth Root/injuries*

Fulltext Understanding the dental need and care during pregnancy: a review

Ngeow WC, Chai WL

Med J Malaysia, 1999 Mar;54(1):146-50.

PMID: 10972020

This paper reviews the oral and dental lesions that are seen during pregnancy. Trimester approach should be adopted in the management of the pregnant patients. A good dental preventive programme is essential. The significance of prescribing fluoride supplements and the use of dental radiography during pregnancy is also briefly reviewed.

Matched MeSH terms: Tooth Diseases/prevention & control*; Tooth Diseases/radiography; Tooth Diseases/therapy*

Clinical evaluation of a dual-activated bleaching system

Toh CG

Asian J Aesthet Dent, 1993 Jul;1(2):65-70.

PMID: 7921798

Bleaching has been accepted as one of the methods of treating discoloured teeth. The object of this study was to assess the effectiveness of treating discoloured teeth with a dual activated bleaching system (Hi Lite) that utilises both light and chemical activation of hydrogen peroxide. The results achieved with a 19% hydrogen peroxide solution were compared with those using 35% hydrogen peroxide solution provided in a standard kit. Twenty-three university students with various complaints of discoloured teeth were treated with the bleaching system utilising both concentrations of hydrogen peroxide. Colour change was monitored by using Vita Shade Guide and a camera. The teeth were observed to be 1/2 to 2 shades lighter after each treatment session. It required one to three treatment sessions to achieve the desired results except for severe tetracycline stained teeth. There was no visible difference between the results achieved by the different concentrations of hydrogen peroxide although it took 3 to 5 minutes longer for the 19% hydrogen peroxide to effect a change in colour.

Matched MeSH terms: Tooth Bleaching/methods*; Tooth Discoloration/drug therapy*

Management of an avulsed tooth with severe root resorption

Meon R

Singapore Dent J, 1988 Dec;13(1):53-6.

PMID: 3155008

Delayed replantation of an avulsed tooth with an open apex resulted in failure of revascularization, necrosis of the pulp and extensive external root resorption. Removal of the necrotic pulp and repeated intra-canal dressings of calcium hydroxide over a three year period arrested the inflammatory resorptive process. The process was replaced by replacement resorption leading to ankylosis and infra-occlusion of the affected tooth. As the tooth was asymptomatic, it was retained in the arch to act as a space maintainer. To improve aesthetics, the crown was recontoured using a light-cured resin.

Matched MeSH terms: Tooth Avulsion/therapy*; Tooth Replantation*

Fulltext Rare morphology of the third maxillary molar and potential complications in its extraction

Siti Mazlipah Ismail, Firdaus Hariri

Ann Dent, 2020;27(1):66-68.

MyJurnal

There is a wide variation in the morphology of third maxillary molar which can be difficult to be identified radiographically. We present a case of a 26 year-old Yemeni female patient presented with difficult extraction of her left maxillary third molar. The extracted tooth showed a rare variation of root morphology, having four roots with three roots curving palatally at the apices. This report emphasized the potential complex morphological variation of maxillary third molar which may lead to the difficulty of a routine straight forward procedure thus needing careful extraction maneuvering to prevent any complications.

Matched MeSH terms: Tooth Extraction

Fulltext A systematic review of randomized controlled trials on sterilization methods of extracted human teeth

Western JS, Dicksit DD

J Conserv Dent, 2016 Jul-Aug;19(4):343-6.

PMID: 27563183 DOI: 10.4103/0972-0707.186457

AIM OF THIS STUDY: The aim was to evaluate the efficiency of different sterilization methods on extracted human teeth (EHT) by a systematic review of in vitro randomized controlled trials.
METHODOLOGY: An extensive electronic database literature search concerning the sterilization of EHT was conducted. The search terms used were "human teeth, sterilization, disinfection, randomized controlled trials, and infection control." Randomized controlled trials which aim at comparing the efficiency of different methods of sterilization of EHT were all included in this systematic review.
RESULTS: Out of 1618 articles obtained, eight articles were selected for this systematic review. The sterilization methods reviewed were autoclaving, 10% formalin, 5.25% sodium hypochlorite, 3% hydrogen peroxide, 2% glutaraldehyde, 0.1% thymol, and boiling to 100°C. Data were extracted from the selected individual studies and their findings were summarized.
CONCLUSION: Autoclaving and 10% formalin can be considered as 100% efficient and reliable methods. While the use of 5.25% sodium hypochlorite, 3% hydrogen peroxide, 2% glutaraldehyde, 0.1% thymol, and boiling to 100°C was inefficient and unreliable methods of sterilization of EHT.
KEYWORDS: Autoclaving; extracted human teeth; formalin; sterilization methods; systematic review

Matched MeSH terms: Tooth Extraction

Fulltext Alternative Technique To Remove Lateral Periodontal Cystlike Lesion The Tunnelling Approach

Ngeow, W.C., Shanmuhasuntharam, P.

Ann Dent, 1997;4(1):-.

MyJurnal

Surgery done around gingival margin may eventually result in loss of attachment and recession of the gingiva. Root hypersensitivity is another possible complication when coupled with overzealous tooth brushing by the patients. This paper presents an alternative method to remove a lesion located at the lateral cervical third of a root. Its advantage is that the gingival margin is kept intact.

Matched MeSH terms: Tooth Root

Fulltext Scanning Electron Microscopic Examination of Root Canal Walls of Deciduous Molars with Necrotic Pulp

Rusmah, M.

Ann Dent, 1995;2(1):-.

MyJurnal

The root canal walls of twenty -five deciduous molar teeth with exposed and necrotic pulps were examined using thescanning electronmicroscope. Immediately after extraction, all teeth were fixed in Kamosky's solution. The coronal portion of the tooth was sectioned at about 2mm above the enamel cemental junction.The mesial and distal roots were separat~d and either split in the mesio-distal or bucco-lingual direction. All specimens were prepared for SEM. Obsevations showed that all roots were infected with organisms consisting of cocciand short rods. Some of the coccihad penetrated the dentine layer. However, the distribution of organisms is. not uniform throughout thecanals. Bacterialinvasion ismostinthecoronal region and reduces towards the apical region: Accompanying bacterial invasion is root canal walls deterioration. The odontoblastic processes are the first to deteriorate followed by the predentine layer.

Matched MeSH terms: Tooth Root

Fulltext An exploratory study of human teeth enamel by using FT-Raman spectroscopy

Afishah Alias, Siti Rahayu Mohd Hashim, Wajir, Julynnie, Fauziah Abdul Aziz, Mihaly, Judith

Journal of Nuclear and Related Technologies, 2009;2009(1):141-146.

MyJurnal

Unaffected, affected and heavily affected teeth enamel were studied by using FT-Raman spectroscopy. The 14 permanent teeth’s enamel surface were measured randomly, resulting in total n=43 FT-Raman spectra. The results obtained from FT-Raman spectra of heavily affected, affected and unaffected tooth’s enamel surfaces did not show any significant difference. In this study, Kruskal-Wallis and Wilcoxon rank sum tests were used to compare the intensity between the categories of enamel as well as the surfaces of teeth samples.

Matched MeSH terms: Tooth

Fulltext The Tooth-Coloured Inlay/Onlay Restorations - A Review

Abdul Razak, A.A.

Ann Dent, 1998;5(1):-.

MyJurnal

Much interest has been generated in tooth-co loured inlays/onlays especially with patient's concern for esthetic appearance and the dentist's appreciation for additional strength of the restored tooth, together with bonding. Many types of tooth-coloured inlay/onlay restorations are available but none have undergone extensive and long term research. The different types of inlay/onlay restorations together with steps in their preparation are presented in this paper.

Matched MeSH terms: Tooth

Fulltext Existence of golden proportion in maxillary anterior teeth of University of Malaya dental students

Sulaiman, E., Yaakub, M.S., Zulkifli, N.A., Abdullah, M., Gonzalez, M.A.G.

Ann Dent, 2010;17(1):9-14.

MyJurnal

Purpose of the study: The objective of this study was to investigate the existence of the golden proportion between the width of the maxillary anterior teeth of undergraduate dental students at University of Malaya. Materials and method: Standardised photographs of 100 dental students’ smiles displaying only the lips and the teeth were captured. The images were transferred to a personal computer and the width of the maxillary anterior teeth was measured using an Image
Analyzer (Leiqa QWin). Calculations were made according to the Theory of Golden Proportion. The
data were statistically analysed using paired student T-test (α

Matched MeSH terms: Tooth

Maxillary sinus and the oral surgeon

Cugadasan V

Med J Malaysia, 1978 Sep;33(1):47-9.

PMID: 750896

Matched MeSH terms: Tooth Extraction/adverse effects; Tooth Migration/etiology

Observations on the dental condition of Europeans and Asiatics in Singapore following the Japanese Occupation

CAMERON G

Br Dent J, 1946 Jul;81:16.

PMID: 20991033

Matched MeSH terms: Tooth*; Tooth Diseases*

Fulltext Bilateral transposition of maxillary canines and first premolars : orthodontic management. a case report. [Abstract]

Tan CL, Wong XH

International Medical Journal Malaysia, 2017;16(21):39.

MyJurnal

Introduction: Transposition is a rare dental anomaly in positional interchange between two adjacent teeth. Studies indicated that tooth transpositions are more frequent unilateral than bilateral (12:1). It is a very rare phenomenon when the anomaly is bilateral and affects same teeth on both sides. The case of a 17 year old girl, with class I incisor relationship on class 1 skeletal base with bilateral transposition of maxillary canines-first premolars, severe crowding and posterior crossbite, is presented. This case report demonstrates the orthodontic management of bilateral transposition of maxillary canines-first premolars and by the end of treatment, the transpositions were maintained while achieving a good functional and aesthetic result.
KEYWORDS: transposition, maxillary canine, malocclusion

Matched MeSH terms: Tooth Eruption, Ectopic

Apical extrusion of debris in four different endodontic instrumentation systems: A meta-analysis

Western JS, Dicksit DD

J Conserv Dent, 2017 Jan-Feb;20(1):30-36.

PMID: 28761250 DOI: 10.4103/0972-0707.209066

BACKGROUND: All endodontic instrumentation systems tested so far, promote apical extrusion of debris, which is one of the main causes of postoperative pain, flare ups, and delayed healing.

OBJECTIVES: Of this meta-analysis was to collect and analyze in vitro studies quantifying apically extruded debris while using Hand ProTaper (manual), ProTaper Universal (rotary), Wave One (reciprocating), and self-adjusting file (SAF; vibratory) endodontic instrumentation systems and to determine methods which produced lesser extrusion of debris apically.

METHODOLOGY: An extensive electronic database search was done in PubMed, Scopus, Cochrane, LILACS, and Google Scholar from inception until February 2016 using the key terms "Apical Debris Extrusion, extruded material, and manual/rotary/reciprocating/SAF systems." A systematic search strategy was followed to extract 12 potential articles from a total of 1352 articles. The overall effect size was calculated from the raw mean difference of weight of apically extruded debris.

RESULTS: Statistically significant difference was seen in the following comparisons: SAF < Wave One, SAF < Rotary ProTaper.

CONCLUSIONS: Apical extrusion of debris was invariably present in all the instrumentation systems analyzed. SAF system seemed to be periapical tissue friendly as it caused reduced apical extrusion compared to Rotary ProTaper and Wave One.

Matched MeSH terms: Tooth Apex

Polymorphism in emergence of deciduous dentition: A cross-sectional study of Indian children

Kariya P, Tandon S, Singh S, Tewari N

J Investig Clin Dent, 2018 Feb;9(1).

PMID: 28349669 DOI: 10.1111/jicd.12266

AIM: The aim of the present study was to evaluate the timing and sequence of the eruption of deciduous teeth in Indian children.

METHOD: This cross-sectional study focused on children aged 5-36 months. One hospital was randomly selected from four geographic zones of the city. A total of 400 children from each hospital, fulfilling the inclusion criteria, constituted the sample. The examination was carried out by a single, trained examiner. The tooth was recorded as "present" or "absent" on the day of examination. The mean age of emergence was calculated using a probit model. Independent sample t-test was used to assess the statistical significance of differences in the mean age of tooth emergence.

RESULTS: The deciduous mandibular central incisor was the first tooth to erupt in the oral cavity (8.15±1.69 months). Girls showed delayed eruption compared to boys; however, no interarch variation was observed in the mean age of tooth eruption. There was also no difference in the sequence of eruption of deciduous teeth, as reported in other studies.

CONCLUSIONS: The present study establishes a chronological table for the eruption of deciduous teeth in Indian children. There was delayed eruption of deciduous teeth when compared to the reference ranges of Western populations.

Matched MeSH terms: Tooth Eruption/physiology*; Tooth, Deciduous/physiology*

Does the use of amoxicillin/amoxicillin-clavulanic acid in third molar surgery reduce the risk of postoperative infection? A systematic review with meta-analysis

Menon RK, Gopinath D, Li KY, Leung YY, Botelho MG

Int J Oral Maxillofac Surg, 2019 Feb;48(2):263-273.

PMID: 30145064 DOI: 10.1016/j.ijom.2018.08.002

The objectives of this systematic review were to investigate the efficacy of amoxicillin/amoxicillin-clavulanic acid for reducing the risk of postoperative infection after third molar surgery and to evaluate the adverse outcomes in these patients, as well as in healthy volunteers. A systematic search of four databases was performed on May 26, 2017. Eleven studies qualified for the qualitative analysis and eight were found suitable for meta-analysis. The results suggest that both amoxicillin-clavulanic acid and amoxicillin significantly reduce the risk of infection after third molar extraction (overall relative risk (RR) 0.25, P<0.001). However, with the exclusion of randomized controlled trials with a split-mouth design (due to an inadequate crossover period after antibiotic treatment), only amoxicillin-clavulanic acid was found to be effective (RR 0.21, P<0.001). The risk of adverse effects was significantly higher in the amoxicillin-clavulanic acid group (RR=4.12, P=0.023) than in the amoxicillin group (RR 1.57, P=0.405). In conclusion, amoxicillin-clavulanic acid and amoxicillin may significantly reduce the risk of infection after third molar extraction. However, their use in third molar surgery should be viewed with caution, as recent clinical trials on healthy volunteers have shown evidence of the negative impact of amoxicillin use on bacterial diversity and antibiotic resistance.

Matched MeSH terms: Tooth Extraction*; Tooth, Impacted/surgery*

Displaying publications 141 - 160 of 546 in total