Intentional replantation is defined as extraction of the tooth followed by replacement in its socket. Intentional replantation is considered as a last resort where surgical endodontics or conventional root canal therapy cannot be performed. Factors determining success in intentional replantation are periodontal cell viability, removal of irritant, good apical seal and procedure carried out under aseptic condition with a traumatic extraction. In this article, a case of intentional reimplantation is described and discussed as a treatment approach for failed root canal treatment with separated instrument periapically beyond the apical terminus in mandibular second molar.

Multiple impacted permanent teeth are uncommon and were rarely reported in the literature till date. This clinical report describes a multidisciplinary approach for the oral rehabilitation of a young adult patient with an undiagnosed syndrome presenting multiple impacted permanent teeth, retained deciduous teeth and false gingival enlargement. The specific objectives of this treatment were to enhance esthetics and restore the masticatory function while importing a positive psychological impact to the patient. One of the most demanding aspects essential to long-term success of such cases involves the regular monitoring of the patients, while simultaneously fulfilling aesthetic and functional parameters.

The aim of this study is to evaluate increases in temperature on the external root surface during endodontic treatment with three different rotary file systems. Fifty human mandibular first premolars with single root canal were selected. All root canals were instrumented using a size 20 H file, and the canals were irrigated with 5% sodium hypochlorite solution. The samples were randomly divided into the following three groups of 15 teeth: Group 1: The Protaper Next Rotary Files X1 and X2; Group 2: The Mtwo rotary File 20/06 and 25/06 Group 3: The Hyflex rotary File 20/06 and 25/06. During the preparation, the temperature changes were measured in the middle third of the roots using a noncontact infrared thermometer. The temperature data were transferred from the thermometer to the computer and were observed graphically. Statistical analysis was performed using the oneway ANOVA analysis of variance at a significance level of 0.05. The increases in temperature caused by the Hyflex rotary file system were lower than those of the other files. The Mtwo rotary file showed the highest temperature increases. However, there were no significant differences were noticed between the Protaper Next and Hyflex rotary files in terms of temperature increase during root canal preparation. Mean temperature increases no higher than 3.4ºC were recorded for any of the system examined, which indicates that these instruments are safe for the surrounding periodontal tissues.

Radiographic imaging is essential in diagnosis, treatment planning and follow-up in endodontics. The interpretation of the 2-D images can be confounded by superimposition of both teeth and supporting structures and the geometric distortion that is present. These problems are overcome by cone beam computed tomography (CBCT) which produces accurate 3-D images which can be used for pre-surgical assessment. The spatial relationship of the specific tooth root(s) undergoing the surgical procedure (and the associated bony destruction) to adjacent anatomical structures can be precisely assessed. The radicular cyst arises from epithelial remnants stimulated to proliferate by an inflammatory process originating from pulpal necrosis of a non-vital tooth. Radiographically, the classical description of the lesion is a round or oval, well circumscribed radiolucent image involving the apex of the tooth. Radicular cyst is usually sterile unless it is secondarily infected. This case report presents successful management of an infected radicular cyst associated with a permanent maxillary left central incisor (21) in a 38 year old male by complete enucleation of the cyst and using platelet rich fibrin (PRF) and bone graft to fill in the bony cavity to hasten the healing.

Successful endodontic treatment depends on thorough knowledge in root canal morphology, appropriate assessment of pulp chamber floor, critical interpretation of radiograph, and on biomechanical preparation followed by three dimensional obturation of root canal system. The possibility of additional root /canal should be considered even in teeth a low frequency of abnormal root canal anatomy. Mandibular premolars have earned the reputation for having aberrant anatomy. This article reports and discusses the successful endodontic management of mandibular second premolar with one canal is bifurcating into two canals.

Tobacco use is a serious public health problem, the prevention and control of tobacco use has become an emerging issue of global significance and of central importance to oral health and Dental care. So, health professionals have a critical role in reducing the tobacco use in which dentists play a significant role. Thus, this study was conducted to assess and compare the Knowledge, attitude and perception towards tobacco use among dental and engineering students. A self-administered structured closed ended questionnaire to 440 Undergraduates was used. The chi-squared test was used to check differences between proportions. The unpaired t-test was used to check mean differences between the groups. Majority of the students in both the group had a fair level of knowledge related to tobacco regulations. Mean knowledge score between both the groups towards ill-effects of tobacco showed that dental students had good knowledge level as compared to engineering students (P=0.000). 145 (94.8%) dental students and 243 (84.4%) engineering students expressed a positive attitude towards advising smokers to stop smoking. Among dental students, 129(84.3%) perceive that attractive packaging of tobacco products is bad as compared to 181(62.8%) engineering students. Although attitude and perception among dental students towards tobacco cessation was better than engineering students, knowledge of tobacco regulations in both the groups was not satisfactory.