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The oral cavity is vulnerable to a limitless number of environmental insults; white lesions are common findings in the oral cavity. White lesions in the oral cavity may be benign, premalignant or malignant. Early determination is the most significant single factor in battling oral malignancy and improving endurance rate. So white lesions occurring in the oral mucosa are promptly needed to be identified and treated. The aim of the study was to determine the incidence of oral white lesions occurring among patients visiting a private dental hospital. A total of 10,000 patient data were selected for the study; patients who reported to the dental college between June 2019 to March 2020 were included for the study. This was a retrospective study, and the data were obtained from patient case records, and the data were reviewed for the presence of white lesions. White lesions coexisting with other types of lesions such as red lesions, vesiculoerosive lesions, pigmented lesions etc. have been excluded from the study. The overall incidence of white lesions was found to be 7.3 per 1000 per year. The number of oral white lesions was 0.65% in males and 0.08% in females. The number of Leukoplakia was 26.03% in male, and 1.37% in female, OSMF 24.66% in male and 4.11% in female, Tobacco pouch keratosis 31.51% in males and chemical burn 4.11% in males and 2.74% in females, candidiasis was 2.74% in both male and female. From the present study, we can conclude that the typical white lesion in the oral cavity is tobacco pouch keratosis and most of the lesions belong to the category of potentially malignant disorders hence the timely diagnosis of these lesions is paramount and can minimize the progression of oral cancer.

Dental implants provide a strong foundation for fixed or removable prosthetic teeth that are made to match natural dentition. It has become an ideal method of oral rehabilitation after missing natural dentition has been recognised as a reliable tool for dental reconstruction and aesthetics. Marginal bone loss is characterized by a reduction in bone loss is characterized by a reduction in bone level both vertically and horizontally. The levels at which dental implants are placed include sub-crystal, equi-crestal, and supra-crestal. The crestal levels affect bone height significantly. Failure to do so will lead to peri-implant bone loss which will affect the implant function and ultimately implant failure. A retrospective study was conducted based on a university setting. 615 patients with 1141 implant sites were reviewed from June 2019 to March 2020. Excel tabulation and SPSS analysis were done for data analysis. There was a statistically significant difference between the variables that included tooth region, crestal relation and site (jaw)—[p-value<0.05] The most common crestal relation of implant placement is equi-crestal implant placement. The assessment of trends of implant placement in relation to crestal bone level shows that equi-crestal implant is the most preferred crestal relation of implant placement in Saveetha Dental College.

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