A novel, new generation drill coating for osteotomy site preparation.

BACKGROUND: Implant success and survival rate ranges from 93% to 97%; however, failures are not very uncommon. These failures can be caused due to a variety of reasons out of which increased heat during drilling of osteotomies is a major contributor. AIM: The aim of this study was to develop a new generation diamond-coated drill and compare the thermal changes between commercially available drills and the experimental diamond coated drill during implant site preparation in artificial bone. MATERIAL AND METHODS: Three types of drills were selected for the study; Group A (Carbide), Group B (Stainless Steel), and Group C (Experimental). A total of 60 implant site preparations were performed with all the drills in artificial bone using a surgical unit linked to a testing device, in order to standardize implant drilling procedures. Bone temperature variations were recorded when drilling at a depth of 10 mm. A constant irrigation of 50 ml/minute and drilling speed of 800 r.p.m. was maintained. RESULTS: The mean temperature of Group A, Group B, and Group C was 35.57°C, 36.83°C and 34.23°C, respectively. The results were assessed and statistically analyzed using ANOVA test and post hoc Bonferroni test. Statistically significant higher temperatures were obtained with stainless steel drill and carbide drill when compared with the experimental diamond coated drill. (P = 0.000). CONCLUSIONS: Diamond coated osteotomy drills have shown promising results in reducing heat generation at the osteotomy. Further studies need to be conducted to maximize the potential use of diamond as components of drills in implant dentistry.

A novel and easy technique for restoring grossly decayed mandibular molar with a modified cast-post.

The article addresses the difficulty of restoring a grossly carious molar tooth, where very little tooth structure is left after caries excavation. When enough sound tooth structure is missing for satisfying the ferrule effect, a clinician can follow this technique and easily restore such teeth. A step by step procedure, including instrumentation and materials and a new impression technique, is described in detail, with clinical photographs. This technique results in the fabrication of a robust and extremely retentive post and core on which to place fixed prosthodontic restorations. A 2 and half year study showed that the tooth well in function with no signs of any problem. The author has restored around many decayed molars using this technique. Over a period of three years, no failure was reported. With an increasing demand on the dentist for restoring a structurally compromised teeth, this technique provides the patients with a robust prosthodontic solution.

NSAIDs and bleeding in periodontal surgery.

AIM: To evaluate and compare the clinical effects of ibuprofen and diclofenac sodium on bleeding during periodontal surgery. MATERIALS AND METHODS: Thirteen medically healthy men and women of mean age 37.5±17.67 (mean age± standard deviation) were selected for the study. All the subjects were divided into three groups: control (C) and test groups (T1) and (T2). Each subject of T1 group and T2 group was given ibuprofen and diclofenac sodium respectively, prior to surgery. Bleeding times of patients were recorded prior to performance of periodontal flap surgical procedures. RESULTS: It was found that there was increased bleeding time and increased peri-operative bleeding when ibuprofen and diclofenac sodium were taken prior to surgery and this was statistically significant. (2.5538 (T1), 1.8385 (T2) versus 1.2385 (C) minute, p= .001) (mean blood loss) and (62.0325 ± 9.0594 (T1), 51.082 ± 9.792 (T2) versus 37.4992 ± 5.99 (C) millilitre, p = .000). CONCLUSION: The findings of this study suggested that pre-operative administration of ibuprofen and diclofenac sodium could increase bleeding time and peri - operative blood loss.

Idiopathic gingival enlargement associated with generalized aggressive periodontitis in a 19-year-old female.

Gingival enlargement, one of the manifestations of gingival and periodontal disease, is also known as gingival overgrowth. Idiopathic gingival enlargement is a rare gingival overgrowth, which is of an undetermined cause. This unknown etiology has now been linked to specific genes and idiopathic gingival enlargement is at times referred to as hereditary gingival enlargement. This condition is a benign, slow growing proliferation of gingival tissues. Aggressive periodontitis is the rapid form of periodontal disease which is characterized by extensive periodontal tissue destruction, increased host-susceptibility toward periodontal disease progress and a genetic predilection toward disease occurrence. We present a rare case of idiopathic gingival fibromatosis associated with generalized aggressive periodontitis in a young female. The patient presented with classic clinical and radiographic presentation associated with gingival enlargement and aggressive periodontitis. The diagnosis was then confirmed by histopathological and neutrophil functions tests.