OBJECTIVE: Tooth wear is a term defined as the loss of dental hard tissue in a damaged tooth if there is no existing dental
caries or trauma. Tooth wear rarely exists alone and is observed clinically and experimentally in combination. Excessive tooth
wear leads to hypersensitivity and exposed dentin. Tooth wear can be classified as attrition, erosion, abrasion. The frequency
of normal tooth preservation is greater than ever, thus a better prevalence of tooth wear is experiential in the population.
Therefore, the objective of the present cross-sectional study was to evaluate tooth wear and its causative risk factors amongst
patients attending the Dental Hospital of Karachi.
METHODOLOGY: The current study was a cross-sectional study conducted on adult patients recruited from the Out-Patient
Department of Oral Diagnosis from May 2018 - December 2018. A consecutive sampling method was used and 250 adult
patients aged 18-45 years were included. Tooth wear was assessed by using Smith and Knight Tooth Wear Index (TWI index).Data
was entered and analyzed by using SPSS, frequency, percentages were calculated, and a chi-square test was performed to find
the association between gender and risk factors.
RESULTS: The subject populations of 250 were assessed. Out of which 178 were male (71.2%) and 72 (28.8%) were female
with age ranging between 18 to 48 years old. In this study, 92.4% of them were suffering from tooth wear and only 31.2% have
extended to the severe stage of the tooth surface loss.
CONCLUSION: The present study concluded that there is an association between tooth wear and its risk factors.
KEYWORDS: Tooth Wear; Dental Wear; Tooth Wear Indices; Sensitivity and Specificity; Risk Factors.
HOW TO CITE: Shahab A, Wali A, Siddiqui TM, Hamed M, Aslam K. Evaluation of tooth wear and its causative risk factors
amongst patients attending dental hospital of Karachi. J Pak Dent Assoc 2021;30(4):255-260.
DOI: https://doi.org/10.25301/JPDA.304.255
Received: 06 January 2021, Accepted: 07 August 2021
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