Objectives: This study aimed to evaluate the mucograft collagen matrix (CM) to increase keratinized tissue around teeth compared to free gingival graft (FGG).
Materials and Methods: The present double-blind, randomized, controlled clinical trial studied 12 patients who had 2 mm or less keratinized gingiva bilaterally around mandibular premolars. The 6-month width of keratinized tissue, periodontal parameters (preoperatively and 1, 3, and 6 months postoperatively), color match, pain, and total surgical time were measured.
Results: The mean dimensional change of keratinized gingiva 6 months postoperatively was 4.1±0.7 mm for FGG and 8±1.7 mm for CM. Periodontal parameters were not affected in the two groups. The CM group had a significantly lower pain, experienced less surgery time, and gained better aesthetics compared to the FGG group.
Conclusion: CM appears to be a suitable substitute for FGG in procedures designed to increase keratinized tissue around teeth. It has remarkable benefits, such as acceptable keratinized tissue gain, less pain, less surgical chair time, and better aesthetics.
For many years oral esthetic problems treated by dentists were limited to those involving the teeth without giving consideration to the gingiva. However, today it is well established that these structures should be in balance to appear esthetically pleasing. More than 3mm gingival show during smiling is considered as ‘excessive gingival display’ also known as “gummy smile”, which is not attractive. The current case series, presents three patients with gummy smile managed by lip repositioning surgery, each with 1 year follow up. Our objective was to introduce lip repositioning as a successful treatment modality to decrease gingival show using a simple and conservative surgical approach.
Objective: Health professionals are role models for the community; thus, the oral health condition of the public is shaped potentially by oral self-care attitudes of health professionals. The aim of the present study was to compare dental and medical students' dental health attitudes and behaviour in their pre-clinic stage in Iran. Methods: In 2012, a cross-sectional study was conducted in three dental schools and one medical school in Tehran. A Persian version of HU-DBI (Hiroshima University-Dental Behavioural Inventory) questionnaire was prepared, validated, and distributed among the all pre-clinical students of dental and medical schools at the end of the second year of education through a census method (n = 156). Chi-square test and logistic regression model served for statistical analysis. Results: In total, 144 questionnaires were returned (response rate = 92.3%). Generally, the dental students reported more favourable attitudes and behaviours. The most important differences between medical and dental students were found in four items: not worrying much about visiting the dentist (37.5% vs. 19.3% agreement, respectively, P = 0.01), be bothered by the colour of gums (8.9% vs. 1.1% agreement, respectively, P = 0.02), brushing each of teeth carefully (48.2% vs. 65.9% agreement, respectively, P = 0.03), and using a toothbrush with hard bristles (32.1% vs. 17% agreement, respectively, P = 0.03). Conclusions: Some aspects of oral health attitudes and behaviours among dental and medical students need to be improved. Dental students seem to show better behaviour probably due to their dental education experience.
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