ABSTRACT
Introduction: The efficacy of erbium-doped yttrium aluminum garnet [Er:YAG] laser for root debridement in comparison with curettes has been the subject of many recent investigations. Considering the possibility of chemical and ultra-structural changes in root surfaces following laser irradiation, this study sought to assess the effects of scaling and root planing [SRP] with curettes and Er:YAG laser on chemical properties and ultrastructure of root surfaces using spectroscopy and scanning electron microscopy [SEM]
Methods: In this in vitro experimental study, extracted sound human single-rooted teeth [n = 50] were randomly scaled using manual curettes alone or in conjunction with Er:YAG laser at 100 and 150 mJ/pulse output energies. The weight percentages of carbon, oxygen, phosphorous and calcium remaining on the root surfaces were calculated using spectroscopy and the surface morphology of specimens was assessed under SEM. Data were analyzed using one-way analysis of variance [ANOVA]
Results: No significant differences [P > 0.05] were noted in the mean carbon, oxygen, phosphorous and calcium weight percentages on root surfaces following SRP using manual curettes with and without laser irradiation at both output energies. Laser irradiation after SRP with curettes yielded rougher surfaces compared to the use of curettes alone
Conclusion: Although laser irradiation yielded rougher surfaces, root surfaces were not significantly different in terms of chemical composition following SRP using manual curettes with and without Er:YAG laser irradiation. Er:YAG laser can be safely used as an adjunct to curettes for SRP
ABSTRACT
Statement of the Problem: Gingival recession has been considered as the most challenging issue in the field of periodontal plastic surgery
Purpose: The purpose of this study was to evaluate the clinical efficacy of root coverage procedures by using partial thickness double pedicle graft and compare it with full thickness double pedicle graft
Materials and Method: Eight patients, aged 15 to 58 years including 6 females and 2 males with 20 paired [mirror image] defects with class I and II gingival recession were randomly assigned into two groups. Clinical parameters such as recession depth, recession width, clinical attachment level, probing depth, and width of keratinized tissue were measured at the baseline and 6 months post-surgery. A mucosal double papillary flap was elevated and the respective root was thoroughly planed. The connective tissue graft was harvested from the palate, and then adapted over the root. The pedicle flap was secured over the connective tissue graft and sutured. The surgical technique was similar in the control group except for the prepared double pedicle graft which was full thickness
Results: The mean root coverage was 88.14% [2.83 mm] in the test group and 85.7% [2.75 mm] in the control group. No statistical differences were found in the mean reduction of vertical recession, width of recession, or probing depth between the test and control groups. In both procedures, the width of keratinized tissue increased after three months and the difference between the two groups was not statistically significant in this respect
Conclusion: Connective tissue with partial and full thickness double pedicle grafts can be successfully used for treatment of marginal gingival recession
ABSTRACT
Objective: At present, growth factor-containing products such as enamel matrix derivatives, recombinant bone morphogenetic protein [rh-BMP], recombinant platelet derived growth factor and platelet rich plasma [PRP] have gained increasing attention. PRP is an autologous source of platelet growth factors used to enhance healing of soft and hard tissues. PRP has gained popularity due to its autologous nature, easy procurement and low cost
Review of Literatures: This study focuses on procurement and clinical applications of PRP
Conclusion: Controversy exists regarding the efficacy and applications of PRP and longitudinal studies are required to further elucidate this subject