MyMedR

Porcelain laminate veneers--considerations for a successful approach in the conservative treatment of aesthetic problems

Toh CG

Asian J Aesthet Dent, 1994;2(1):11-7.

PMID: 9063109

The development of porcelain laminate veneers has added a new dimension to dentistry in the treatment of unsightly anterior teeth. It is a less invasive procedure than the conventional crown restoration in the treatment of aesthetic problems. This paper highlights some of the considerations in the successful use of porcelain veneers.

Matched MeSH terms: Tooth Preparation, Prosthodontic/methods

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*

Fulltext Impacted mandibular third molars among patients attending Hospital Universiti Sains Malaysia

Rosfaima Othman Jaffar, Tin-Oo M.M.

Archives of Orofacial Sciences, 2009;4(1):7-12.

MyJurnal

The aim of this study was to identify the position of impacted mandibular third molars based on the classifications of Pell & Gregory and Winter, the indications for extraction, and the relation of post-operative complications and position. Records of patients who attended Hospital Universiti Sains Malaysia between January and December 2007 for surgical removal of mandibular third molars were reviewed. The angulation type, width and depth of impaction were determined by reviewing the orthopantomograms. The indications of extraction and occurrence of any post- operative complications were recorded. A total of 238 impacted teeth were surgically extracted from 194 patients (97 males, 97 females). The reasons for extraction include recurrent pericoronitis (43.1%) followed by prophylactic purposes (33.5%). Mesioangular impactions accounted for 52.3% and Class IIA position of impaction accounted for 45.7% of extractions. The most common post-operative complication was persistent pain and swelling (14.7%) followed by trismus (4.1%) and dry socket (3.0%). There was no significant relationship between the angulation, width and depth of impaction and the occurrence of complication. Mesioangular type and Class IIA position of impaction were the most common impaction. Although the association was not significant, high frequency of post-operative complications was observed in mesioangular, horizontal, IIA and IIC positions.

Matched MeSH terms: Tooth, Impacted

Evaluation of bone healing following immediate and delayed dental implant placement

Younis L, Taher A, Abu-Hassan MI, Tin O

J Contemp Dent Pract, 2009;10(4):35-42.

PMID: 19575052

The purpose of this study was to compare bone healing and coronal bone remodeling following both immediate and delayed placement of titanium dental implants in extraction sockets.

Matched MeSH terms: Tooth Socket/surgery*

Fulltext Clinical parameters of periodontal abscess: a case series of 14 abscesses

Chan, Y.K., Tien, W.S.

Malaysian Dental Journal, 2010;31(1):6-7.

MyJurnal

The prevalence of periodontal abscesses in emergency dental clinics was found to be between 8%-14%. The purpose of this study was to study the clinical features of periodontal abscesses seen in a specialist periodontal unit. There were 14 patients with equal distribution of gender. The mean age was 39.6 years. Twelve upper teeth (86%) were found to be involved as compared to two lower teeth (14%). There were more posterior teeth involved, a total of nine teeth (64%) as compared to five anterior teeth (36%). The mean pocket depth associated with the abscesses was found to be 7.4mm. There were ten buccal sites (71%) as compared to four palatal sites (29%). Average temperature of patients was 36.9° C. Only one patient was found to have cervical lympadenopathy (7%). The teeth involved were found to be mostly mobile with mobility of grade I to III (71%).

Matched MeSH terms: Tooth

Fulltext Management of an impacted dilacerated maxillary central incisor with removable appliances: a case report

Lo, Chai Ling, Mah, Eng Ching, Tie, Sing Fung

Malaysian Dental Journal, 2016;2016(2):0-0.

MyJurnal

Delayed eruption of permanent upper incisors is a cause for concern to patients. It causes aesthetic, function and speech problems. This case report describes a technique of managing impacted dilacerated maxillary central incisors using removable appliances over one and a half year. It is a simple, operator- friendly and economical treatment option with favorable result.

Matched MeSH terms: Tooth Abnormalities; Tooth Eruption; Tooth, Impacted

Gaining access through a calcified pulp chamber: a clinical challenge

Ngeow WC, Thong YL

Int Endod J, 1998 Sep;31(5):367-71.

PMID: 9823142

Dental pulp is prone to dystrophic mineralization; this mineralization can be so extensive that the entire root canal system is obliterated. As a result, root canal treatment can become a difficult if not impossible task. This article presents the endodontic management of a tooth with an obliterated pulp chamber and associated with a discharging sinus in a teenage patient. The role of a calcium hydroxide lining to induce mineralization and cause the obliteration of the pulpal space is also discussed.

Matched MeSH terms: Tooth Injuries/complications

Extreme distal migration of a maxillary canine

Shanmuhasuntharam P, Thong YL

Br Dent J, 1990 Jan 20;168(2):73-4.

PMID: 2404500

A case of extreme distal migration of the left maxillary canine is reported. The canine had erupted buccal to the contact area between the left second premolar and first molar. Past reports of similar ectopia are reviewed.

Matched MeSH terms: Tooth Eruption, Ectopic*; Tooth Migration*; Tooth, Deciduous

Transpositions of maxillary teeth

Shanmuhasuntharam P, Thong YL

Singapore Dent J, 1990 Dec;15(1):27-31.

PMID: 2097726

Transposition of teeth is a rare and special type of ectopic eruption where two contiguous teeth are found occupying each other's respective normal positions. Nine patients with transposed maxillary teeth are reported. The literature on transpositions, especially on the theories regarding the aetiology, is reviewed.

Matched MeSH terms: Tooth Eruption, Ectopic*

Cross-sectional morphology and minimum canal wall widths in C-shaped roots of mandibular molars

Chai WL, Thong YL

J Endod, 2004 Jul;30(7):509-12.

PMID: 15220648

The cross-sectional canal morphology and minimum widths of buccal and lingual canal walls were studied in 20 mandibular molars with C-shaped roots and canal orifices. The roots were mounted in clear resin blocks and sectioned transversely at 1-mm intervals. A total of 154 cross-sections were evaluated with an image analyzer. Twelve different longitudinal canal configurations were identified. The most prevalent were types 1-2 and 1-2-1 with each type occurring in four roots. Evaluation of the cross-sectional morphology showed that the configurations were complete "C" (27%), incomplete C (64%), and non-C (9%). The mean value for the minimum width of the lingual canal wall was 0.58 +/- 0.21 mm and the buccal wall was 0.96 +/- 0.26 mm. This suggests that there is a higher risk of root perforation at the thinner lingual walls of C-shaped canals during shaping and post canal preparation procedures. Both buccal and lingual canal walls were frequently narrower at mesial locations.

Matched MeSH terms: Tooth Root/pathology*

Tooth mineralization stages as a diagnostic tool for assessment of skeletal maturity

Surendran S, Thomas E

Am J Orthod Dentofacial Orthop, 2014 Jan;145(1):7-14.

PMID: 24373650 DOI: 10.1016/j.ajodo.2013.09.007

The objective of this study was to determine whether dental calcification can be used as a first-level diagnostic tool for assessment of skeletal maturity.

Matched MeSH terms: Tooth Calcification/physiology*; Tooth Root/growth & development; Tooth Root/radiography; Tooth Apex/growth & development; Tooth Apex/radiography; Tooth Crown/growth & development; Tooth Crown/radiography

Fulltext General dental practitioners' knowledge and practice on root canal treatment

Che Ab Aziz, Z.A., Abdullah, M., Vello, C.D.S., Thangavelu, K.

Ann Dent, 2006;13(1):12-17.

MyJurnal

Background: Majority of root canal treatment in Malaysia was provided by general dental practitioner. The purpose of this study was to evaluate the knowledge and practice (canal’s preparation, use of materials) by them. Methods: A questionnaire was structured and distributed to 120 registered general dental practitioners in selected areas in Perak, Johor and Klang Valley regarding the provision of root canal therapy in their practices. The questionnaires were hand delivered and collected after 1 to 2 weeks. Results: Reply rate was 95% (n=114). The result demonstrated that 62% respondents indicated that they performed the root canal therapy (RCT) themselves. Out of these only 26% included molars in the treatment. Three quarters of them (77%) used step-back technique and 54% used stainless steel instruments to prepare the canals. The majority of the respondents (69%) used calcium hydroxide as intracanal medicaments. Only 30% used rubber dam for isolation whereas the rest used cotton rolls. The numbers of routine radiographs taken were two for anterior teeth and three for molar. Half of the respondents indicated that they usually completed the RCT for the anterior tooth within two visits whereas three visits were needed for the molar tooth. The results were analyzed descriptively. Conclusions: This study indicates that most of the general dental practitioners’ do not comply with quality standards guidelines such as use of rubber dam as isolation. Cotton roll was the most popular isolation method. In spite of this, most of the respondents tend to update their knowledge and practices with current techniques and materials.

Matched MeSH terms: Tooth

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*

Conservative management of extensively damaged endodontically treated tooth using computer-aided design and computer-aided manufacturing-based hybrid-ceramic endocrown: A clinical report

Ang Y, Tew IM

J Conserv Dent, 2021 02 11;23(6):644-647.

PMID: 34083924 DOI: 10.4103/JCD.JCD_533_20

Restoring extensively damaged endodontically treated posterior teeth is always a challenge in dentistry. The use of endocrowns has gained popularity in restoring severely damaged endodontically treated teeth (ETT) in recent years. In this clinical report, a structurally compromised mandibular second molar with symptomatic irreversible pulpitis and normal apical tissue was endodontically treated. Surgical crown lengthening was attempted thereafter to increase the crown height. However, marginal periodontal tissue re-growth occurred after surgical crown lengthening. The tooth was subsequently restored with endocrown which was fabricated using computer-aided design and computer-aided manufacturing-based hybrid-ceramic. In conclusion, endocrown can be a viable restorative modality for ETT with compromised clinical crown height.

Matched MeSH terms: Tooth Apex; Tooth, Nonvital

Fulltext Blending the appearance of all-ceramic crowns in fluo-rosis condition with direct chair-side technique

Siti Mariam Ab Ghani, Ahmad Syahir Ahmad Zu Saifudin, Muhammad Aliff Ikram Noor Zari, Teh Adilla Mustaza

Compendium of Oral Science, 2015;2(1):47-51.

MyJurnal

Dental fluorosis incidence had been reported to be affecting children widely, especially in water-fluoridated ar-ea. As these children grow into young adults, perceived aesthetic problems arise mainly due to their concern with generalized mottled and stained teeth appearance. Fixed prosthodontics treatment involving single anterior tooth in patients with generalized fluorosis condition had been found challenging due to aesthetic restorability to blend with fluorosis condition. Clinical considerations: A simplified procedural direct chair-side technique of mimicking fluorosis condition onto anterior all-ceramic crowns are discussed in this paper. The mimicked fluoro-sis is reversible and has the opportunity to be adjusted according to the patient’s fluorosis condition thus hinder-ing the need to redo the crown in the future. Conclusions: The appearance of anterior all-ceramic crowns with direct chair-side staining technique provided blended and harmonized well with the dental fluorosis condition in both patients thus, giving natural looking smile.

Matched MeSH terms: Tooth Discoloration

Premolar Cystic Ameloblastoma in a Child

Pathak S, Sonalika WG, Hs V, Tegginammani AS

J Coll Physicians Surg Pak, 2017 Jan;27(1):47-48.

PMID: 28292369 DOI: 2521

Mandibular swellings may occur as a result of many benign lesions of odontogenic or non-odontogenic origin. Ameloblastomas are benign tumours of odontogenic origin, whose importance lies in its potential to grow into enormous size with resulting bone deformity, it is a slow-growing, persistent, and locally aggressive neoplasm. The unicystic ameloblastoma (UA) represents an ameloblastoma variant, presenting as a cyst clinically and radiographically, but showing typical ameloblastomatous epithelium lining histologically. It commonly occurs in second and third decades of life and is rare in children under 12 years of age, and better response to conservative treatment. It shares many clinical and radiographic features with odontogenic cysts/tumours and/or periapical disease of endodontic origin. Reported here is an unusual case of unicystic ameloblastoma involving the crown of an unerupted mandibular first premolar in a 9-year boy in an uncommon location, which was misdiagnosed as periapical lesion of inflammatory origin clinically, and as a dentigerous cyst radiographically. This highlights the importance to routinely submit the removed surgical specimen for histopathological examination.

Matched MeSH terms: Tooth; Tooth Extraction/methods

Double rooted mandibular canines--report of three cases

Teck LS

Dent J Malaysia Singapore, 1968 Feb;8(1):33-5.

PMID: 5248556

Matched MeSH terms: Tooth Root/abnormalities

Fulltext Association between tooth loss and body mass index among older adults in Kuala Pilah, Negeri Sembilan

Chan, Yoke Mun, Rahimah Abdul Kadir, Tengku Aizan Abdul Hamid, Tanti Irawati Rosli

Jurnal Sains Kesihatan Malaysia, 2018;16(1):81-86.

MyJurnal

Loss of teeth can affect masticatory efficiency in older adults. This may result in avoidance or modifications in food
choices and lead to lower intake of important nutrients among older individuals. The aim of this study was to determine
the association between tooth loss and body mass index, BMI, among older adults in Kuala Pilah, Negeri Sembilan. A
cross-sectional study was carried out on 428 older adults aged 50 years and above from selected villages in district of
Kuala Pilah. Respondents were interviewed to collect information on their demographic characteristics. Number of tooth
loss was determined through oral assessment, followed by anthropometric assessment to calculate the BMI of respondents.
Findings showed that majority of the respondents were overweight and obese, 40.4% and 19.9% respectively, while only
a small proportion was underweight, 3.9%. The proportion of edentulism (total tooth loss) was 18.3% and majority of
the older adults had lost more than 12 teeth (77.1%) and less than 4 pairs of occluding posterior teeth (86.0%). Total
and partial tooth loss was found to be not significantly associated with BMI. In relation to the arrangement of teeth,
older adults with reduced number of posterior occluding pairs of teeth were more likely to experience unsatisfactory
BMI (OR = 3.61, 95% CI: 1.48, 8.76). This may suggest that functional arrangement of the tooth in the oral cavity is more
important than the number of tooth loss alone. Thus, maintaining an optimum number of teeth for chewing is essential
for maintenance of ideal BMI.

Matched MeSH terms: Tooth Loss

Fulltext Time series analysis of factors affecting the demand for local rice in Malaysia

Chung, B. H., Tan, J. R.

International Food Research Journal, 2015;22(5):1870-1877.

MyJurnal

The own price, income and price of a substitute are the determinants of demand in the classical theory of consumer behavior. We used the theory to analyze the demand for local rice in Malaysia by using time series variables. We examined whether there is a long run relationship among the variables by using the unit root and cointegration tests. We then conducted the Granger causality, variance decomposition and impulse response function tests to examine their directions of causality as well as short term dynamics. The results show that there is a long run relationship among the variables and a unidirectional causality from price and income to demand. There are also lagged and short term dynamics among the variables.

Matched MeSH terms: Tooth Root

Fulltext Dental Implant Tissue Interface - An Appraisal

Taiyeb Ali, T.B.

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

MyJurnal

Endoseous Implant insertion for the replacement of missing teeth is the state of the art at present times. An understanding of the biology of the perimplant tissues is imperative for the overall success in the dental rehabilitation of a patient with fixture supported prosthesis. The dental implant tissue interface comprises bone, both cortical and cancellous bone; supracrestal connective tissue and the epithelial attachment. A comprehensive review of the response of bone during the postoperative or healing phase, the loading or remodelling phase and during the steady phase is described.

Matched MeSH terms: Tooth Loss

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