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The purpose of this study was to investigate the effects of experience level on the clinical and esthetic results of coronally advanced flap (CAF) surgery. A postgraduate student's first 40 CAF operations in the periodontology residency program were followed. The Miller Class I gingival recessions were divided into four chronologic groups (n = 10 in each). Clinical and esthetic evaluations were performed at baseline and after 6 months. The results of chronologic intervals were statistically compared. While the overall mean root coverage (RC) percentage was 73.6% and the complete RC was 60%, the mean RC percentages of the groups, respectively, were 45%, 55%, 86%, and 95%, showing that the mean and complete RC percentage increased as the experience level increased (P < .05). Similarly, as the experience level increased, closure of the gingival recession depth and width and esthetic scores increased, while the surgical time decreased significantly (P < .05). Complications were observed in three patients during the first interval and in two patients during the second interval, while no complications were observed in the other groups. This study showed that experience level can significantly affect the clinical and esthetic outcomes, operative time, and complication rates of CAF surgery. All education programs should determine how many of each surgical procedure residents must perform before they are considered experienced or expert surgeons who can work independently and predictably achie vesafe, acceptable outcomes. [ABSTRACT FROM AUTHOR]

The aim of this study was to measure the effect of drilling speed on heat generation in the cortical bone, on primary and secondary implant stability of implants and on early and late bone healing with micro-computerized tomography (micro-CT). Sixty implants were placed in the iliac crest of 6 sheep in order to form 5 different drilling protocols: 50 rpm without saline cooling, and 400, 800, 1200, and 2000 rpm with saline cooling. Simultaneous cortical bone temperature and primary stability at the time of placement; secondary stability and the ratio between relative bone and tissue volume (BV/TV) in 2D and 3D in micro-CT analysis were evaluated after 4 and 8 weeks. The 50-rpm group had the highest cortical bone temperature and the longest operation duration with the highest primary stability. Slightly higher values of secondary stability (T2) and subsequent 2D and 3D BV/TV values were found in 1200 rpm with irrigation at 8 weeks. All groups had sufficient ISQ values at 8 weeks for loading although the micro-CT analysis showed varying percentages of bone tissue around implants. The influence of drill speed for implant osteotomy and its irrigation is minimal when it comes to changes in temperature of the cortical bone, primary and secondary implant stability, and BV/TV. [ABSTRACT FROM AUTHOR]

Aim: The aim of this study was to determine whether the combined connective tissue graft (CTG) with injectable platelet‐rich fibrin (i‐PRF) with coronally advanced flap (CAF) improved root coverage of deep Miller Class I or II gingival recessions compared with CTG alone with CAF. Material and Methods: Seventy‐two patients with Miller class I and II gingival recessions were enrolled. Thirty‐six patients were randomly assigned to the test group (CAF+CTG+i‐PRF [700 rpm for 3 min]) or control group (CAF+CTG). Clinical evaluations were made at 6 months. Results: At 6 months, complete root coverage was obtained at 88% of the sites treated with CAF+CTG+i‐PRF and 80% of the sites treated with CAF+CTG. Difference between the two groups was not statistically significant. At 6 months, the recession depth (RD) reduction and increase in keratinized tissue height (KTH) of the test sites were significantly better compared with the control sites. Conclusions: According to the results, the addition of i‐PRF to the CAF+CTG treatment showed further development in terms of increasing the KTH and decreasing RD. However, this single trial is not sufficient to advocate the true clinical effect of i‐PRF on recession treatment with CAF+CTG and additional trials are needed. [ABSTRACT FROM AUTHOR]

Aim: Low-level laser therapy (LLLT) may induce morphological, molecular and cellular processes, which are involved in wound healing. The aim of this split-mouth controlled clinical trial was to assess the effects of LLLT on healing of gingiva after gingivectomy and gingivoplasty. Material and Methods: Twenty patients with inflammatory gingival hyperplasias on their symmetrical teeth were included in this study. After gingivectomy and gingivoplasty, a diode laser (588 nm) was randomly applied to one side of the operation area for 7 days. The surgical areas were disclosed by a solution (Mira-2-tones) to visualize the areas in which the epithelium is absent. Comparison of the surface areas on the LLLT-applied sites and controls were made with an image-analysing software. Results: Despite the prolonged time needed for application, patients have tolerated LLLT well. While there were no statistically significant differences between the stained surface areas of the LLLT applied and the control sites immediately after the surgery, LLLT-applied sites had significantly lower stained areas compared with the controls on the post-operative third, seventh and 15th day ( p<0.001 for each). Conclusions: Within the limitations of this study, the results indicated that LLLT may enhance epithelization and improve wound healing after gingivectomy and gingivoplasty operations. [ABSTRACT FROM AUTHOR]

Purpose: This study investigates the effects of daily consumption of a probiotic ayran drink on gingival inflammation and the development of experimental gingivitis., Materials and Methods: This randomised, double-blind, placebo-controlled trial involved 54 volunteer students. The participants were randomly assigned to two groups: the control group received regular ayran for 42 days, while the test group received probiotic enriched ayran (including Lactobacillus acidophilus and Bifidobacterium bifidum) for 42 days twice a day. After 42 days, mechanical plaque control was stopped for 5 days. The plaque index (PI), gingival index (GI), probing bleeding (BOP), and probing depth (PPD) were measured at baseline, day 42, and day 47. At the same time, gingival crevicular fluid was taken for matrix metalloproteinase-8 examination., Results: The mean scores of BOP, GI, PI, and MMP-8 levels increases in both groups following the 5-day experimental gingivitis period compared to baseline and day 42. Patients using probiotic ayran had significantly less PI, GI, BOP scores and MPP-8 values (p &#61; 0.002; p 0.001; p 0.001; p &#61; 0.001; p &#61; 0.001, respectively) at day 47 compared to the control group. No statistically significant differences in probing pocket depth (PPD) were observed at any time point., Conclusion: The present study suggests that daily consumption of a probiotic ayran drink containing Lactobacillus acidophilus and Bifidobacterium bifidum statistically significantly lowers clinical and immunological markers of gingival inflammation.

Aim: Coronally advanced flap (CAF) technique and its modifications have been proposed in the literature. Low intensity laser therapy (LILT) is shown to increase wound healing. The aim of this split-mouth randomized controlled pilot study was to assess the effects of LILT with respect to root coverage after CAF procedure for the treatment of multiple-recession type defects (MRTD)., Material and Methods: Ten patients with symmetrical 74 Miller I and II gingival recessions were included in this study (37 in test, 37 in control group). A diode laser (588 nm) was applied to test sites before and immediately after surgery, and for 5 min. daily 7 days post-operatively. Comparisons of the surgical sites were made with clinical measurements., Results: Statistically significant differences were observed between test and control sites in the gingival recession depth (GRD), gingival recession width (GRW) and width of the keratinized tissue (WKT) and clinical attachment level (CAL) measurements after 1 year (p = 0.014, p = 0.015, p = 0.009 and p = 0.018 respectively). The test group presented greater complete root coverage (n = 7, 70%) compared with the control group (n = 3, 30%) after treatment., Conclusion: Within the limitations of this study, the results indicated that LILT may improve the predictability of CAF in multiple recessions., (© 2011 John Wiley & Sons A/S.)