Pattern and associated factors of tooth wear lesions in adolescents and adult population in Ibadan, Southwestern Nigeria

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DM Ajayi
AO Oyediran

Absztrakt

Background: Tooth wear is perceived internationally


as an ever-increasing problem associated with loss of


tooth tissue by diseaseprocess other than dental caries.


The purpose of this study was to provide data on the


prevalence and pattern of tooth wear lesions in adult


patients seen at a Government Dental Centre, Ibadan,


Oyo State, Nigeria. Too short ( just two sentences)


Materials and methods: This study was conducted


using a descriptive cross sectional design.


Consecutive patients who attended the Oral


Diagnosis Clinic of the Government Dental Centre,


Dugbe, Ibadan were recruited into the study. A


structured questionnaire was administered to obtain


information from each participant. The severity of


tooth wear was assessed using the Smith and Knight


Tooth Wear Index (TWI). Data were analyzed using


IBM, Statistical Package for Social Sciences version



  1. Frequencies and percentages of relevant variables


were noted while Chi-square test was used to test


associations between categorical variables at 5 %


level of significance.


Results: The prevalence of tooth wear lesion among


the study population was 95.6%. Approximately 58%


had a combination of all the lesions, attrition was


found in 31% of the teeth. There was an association


between tooth wear lesions and regurgitation of


gastric content, consumption of acidic drinks and


beverages, eating of hard food substances. There was


also an association between high bite force coming


from habit such as crushing or biting bones. These


associations were, however, not statistically


significant. The mandibular teeth were more


commonly affected than maxillary teeth, with the


incisors having the highest form of tooth wear than


the molars and premolars.


Conclusion: The prevalence of tooth wear was very


high among the studied population The mandibular


incisors were the most frequently affected tooth type


followed by the molars with the incisal/occlusal


surface being the most commonly involved.

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