ABSTRACT
BACKGROUND AND AIMS: Bone loss around dental implants is generally measured by monitoring changes in marginal bone level using radiographs. After the first year of implantation, an implant should have <0.2 mm annual loss of marginal bone level to satisfy the criteria of success. However, the success rate of dental implants depends on the amount of the crestal bone around the implants. The main aim of this study was to evaluate and compare the crestal bone loss around implants placed with particulate ß-Tricalcium Phosphate Bone Graft and platelet concentrates. METHODS: 50 individuals received hundred dental implants. Each individual received one dental implant in the edentulous site filled with ß-Tricalcium Phosphate Bone Graft along (ß-TCP) with Platelet- Rich Plasma (PRP) (Group A) and another in edentulous site filled only with ß-Tricalcium Phosphate Bone Graft (Group B) in the posterior edentulous region. All the 100 implants were prosthetically loaded after a healing period of three months. Crestal bone loss was measured on mesial, distal, buccal and lingual side of each implant using periapical radiographs 3 months, 6 months and 9 months after implant placement. RESULTS: The average crestal bone loss 9 months after the implants placement in Group A and Group B was 2.75 mm and 2.23 mm respectively, the value being statistically significant (P < 0.05). In both Group A and Group B, the average crestal bone loss was maximum on the lingual side followed by buccal, distal and mesial sides. CONCLUSION: ß-TCP is a promising biomaterial for clinical situations requiring bone augmentation. However, the addition of PRP results in decreased bone loss around the dental implants.
ABSTRACT
INTRODUCTION: Tracheostomy is commonly used to secure the airway during the immediate postoperative period in maxillofacial oncological operations. We conducted a study to review the utility of elective tracheostomy in head and neck surgery. AIM: To review the incidence of intraoperative, perioperative and postoperative complications and its management in elective tracheostomy and to analyse its utility in head and neck surgery. MATERIALS AND METHODS: The study included review of 50 patients, who were treated for head and neck cancers in the Department of Oral And Maxillofacial Surgery of our centre between January 2011 to December 2014. RESULTS: The study showed a male predilection with mean tracheostomy time of 25 minutes and operative time of 11 hours. The patients had an ICU stay of two days and elective ventilation of one day with mild tracheal secretion seen postoperatively. No other complications were noted intraoperatively or postoperatively. CONCLUSION: Elective tracheostomy even though an invasive tool when used properly in selected patients, can be safe and beneficial to the patients.
