Search

ABSTRACTAims The periodontal ligament injection in isolated areas of the mandible was clinically evaluated us-ing only a conventional dental cartridge syringe. Materials and Methods: One hundred subjects requir-ing extractions of either premolars or molars participated in the study. Results: A high percentage of success rate (85%) was achieved but with unfavorable comment from the patient in regard to a painful injection. Duration of surgical anesthesia following the injection proved to be adequate in almost all extractions performed. Conclusions: New devices for performing this injection appear to have some advantage over the conventional syringe technique. However, these devices were unfortunately unavail-able at the area of study. Further studies are recommended to further evaluate its success and also to determine the response of both the periodontal ligament and pulpal tissue in cases were restorative treatment of teeth is to be undertaken for example crowns, bridges and fillings

Abstract Aim: To evaluate the effectiveness of periodontal ligament injection of 2% lidocaine with 1:80,000 adrenaline in producing profound pulp anaesthesia and soft tissue anaesthesia. Materials and Methods: The sample of this study included 120 dental students, 72 males and 48 females, ranging in age from 18 to 23 years. The periodontal injection was administered to the periodontal space on the mesial and distal aspects of the central incisor, first premolar and first molar of both arches. The injection was administered by a standard dental syringe using 0.2 ml of 2% lidocaine with 1:80,000 adrenaline. The pulp anaesthesia was evaluated by electric pulp tester and soft tissue anaesthesia was evaluated by probing. Results: The success rate of pulp anaesthesia in this study was 57.5% (60% in the maxilla and 55% in the mandible). In both arches, first premolar and first molar teeth showed a significantly higher success rate than that of central incisor (p0.05). The duration of pulp anaesthesia was 18.34 minutes. The duration of pulp anaesthesia was significantly longer in the mandibular than maxillary teeth (p0.05). Conclusion: The periodontal ligament injection anaesthesia has a higher success rate in premolars and molars as compared to incisors. The duration of pulp anaesthesia was 18.34 minutes. The extent of soft tissue anaesthesia was 14.77 mm on the labial aspect and 11.18 mm on the lingual aspect.