ABSTRACT
INTRODUCTION: This study was conducted to clinically compare a commercially available combination of 70:30 nanocrystalline hydroxyapatite (HA) and beta tricalcium phosphate (ßTCP) along with platelet-rich fibrin (PRF) with demineralized freeze-dried bone (DFDB) grafts along with PRF in small maxillofacial osseous defects. MATERIALS AND METHODS: Thirty patients with one osseous defect were randomly distributed into two groups of 15 each: Group A and Group B. Group A patients received HA+ßTCP+PRF while Group B received DFDB + PRF. Postoperative pain, swelling, wound dehiscence, and the presence or absence of infection were evaluated at various intervals up to seven postop days and compared between the two groups and within either group. A technetium 99m methylene diphosphonate (MDP 99mTc) scan was also done for a representative patient of either group at the end of three months to evaluate the fate of the graft. RESULTS: We found no significant difference between the two groups for any of our parameters. Significant improvements were noted for pain and swelling within either group at various intervals. The MDP 99mTc scan showed increased tracer uptake for the representing patient of either group. CONCLUSIONS: HA+ßTCP is more inexpensive than DFDB and more readily available and has no host incompatibility or infection potential, resulting in similar clinical postoperative states as DFDB when either is used with PRF.
ABSTRACT
The histopathological examination of mineralized tissues requires decalcification of teeth which is an essential and important step during tissue processing. In the present study we attempted to decalcify teeth using strong and weak acids and a chelating agent with various methods to identify completion of decalcification along with the observance of weight loss percentage of a tooth. Aim: To compare decalcification with conventional decalcification method with strong acid, weak acids and a chelating agent with respect to preservation of tissue structure, efficacy of staining in association with weight change. Materials and methods: A total of 64 multi-rooted and single rooted teeth were used, with group of 16 teeth, (16 molars, 16 pre-molars, 16 canines and 16 incisors) for each of the solution as Chelating agent (10% EDTA), Strong acid(10%HNO3), Weak acid (5% Tri Carboxylic acid) and Von Ebner's solution (hydrochloric acid & sodium chloride), were used in the study respectively. The efficacy of decalcifying agents was evaluated by recording the time taken by particular acid to decalcify the tooth completely and the weight change was observed at set intervals till the completion of decalcification. The endpoint of decalcification was also confirmed with radiographic and chemical methods. The decalcified teeth were then routinely processed, sectioned, and stained with haematoxylin and eosin stains. Different methods were used to confirm the completion of decalcification. After decalcification, all the teeth were examined macroscopically and microscopically. Results: At 70-80% of weight change of a tooth decalcification is complete. 10% EDTA was best suited to the soft and hard tissues in comparison to other solutions. 5% TCA was fair in staining quality and maintenance of hard tissue structures was satisfactory to 10%HNO3 and Von Ebner's solution. Conclusion: The final impression led to the proposition that EDTA was indeed the best decalcifying agent available if the results required are not urgent. For situations where time constraint is there, 5% Tri Carboxylic Acid can be used.
ABSTRACT
Fibrous dysplasia is a benign fibroosseous lesion characterised by the replacement of normal bone by excessive proliferation of cellular fibrous connective tissue which is slowly replaced by bone, osteoid, or cementum-like material. It causes bone pain, deformities, and pathological fractures. Fibrous dysplasia (FD) is a sporadic benign skeletal disorder that can affect one bone (monostotic form) or multiple bones (polyostotic form). In this paper, we present case of a monostotic fibrous dysplasia on the hard palate of 14-year-old girl and a tabular review of common palatal swellings.
