Prevalence of Tooth Wear and Its Association with Oral Health-related Quality of Life

Prevalence of wear will be tested using Basic erosive wear examination index (BEWE) 0 =no tooth wear

• =minimal loss of surface texture
• = distinct defect, hard tissue loss <50% of the surface area
• = hard tissue loss ≥ 50% of the surface area The examination is repeated for all teeth in a sextant but only the surface with the highest score is recorded for each sextant.

To calculate prevalence Examined participants with score 0 will represent unaffected population % Examined participants with scores above 0 will represent the affected population % Stratification of risk levels will be done for affected population according to BEWE risk levels. The sum of the scores is calculated to provide the BEWE risk level (0-14) 0-2 = no risk 3-8= low risk 9-13= medium risk 14= high risk

Sociodemographic data:

age, gender, occupation and education

Predictive risk factors:

• Frequency of consuming acidic food and fruits, carbonated beverages and alcohol.
• Medicine usage ( vitamin c, aspirin)
• Chewing habits
• Systemic diseases
• Tooth brushing habits
• Family socio economic status.

OHRQoL will be measured using Oral Health Index Profile (OHIP-14) questionnaire

OHIP-14 is a 14-item questionnaire that measures :

Functional limitation Physical pain Phycological discomfort Physical disability Social disability Phycological disability Handicap

It measures responses on a Likert scale (0-4) with the following values:

Never (0) Hardly ever (1) Occasionally (2) Frequently (3) Very frequently (4) Points for each response are summed so that each patient can score a minimum of 0 points and a maximum of 56 points. Low scores indicate better self-perceived quality of life, and high scores indicate worse self-perception of oral quality of life Participants diagnosed with tooth wear