Multiple Supernumerary Teeth in a Non-Syndromic Patient: A Case Report

Introduction: Multiple supernumerary teeth are a rare phenomenon. It occurs more often in patients with syndromes such as Gardner's syndrome, cleidocranial dysplasia and so on. This phenomenon in absence of such syndromes is rare. The purpose of this report was to introduce a case of non-syndromic multiple supernumerary impacted teeth.Case Report: A 29-year-old woman with no skeletal, metabolic, systemic and mental disorder was referred to oral and maxillofacial department of Mashhad dental school. In clinical evaluation, seven Permanent teeth were missing. In radiographic evaluation, there were a total of 15 impacted teeth which 7 of them were supernumerary.Conclusion: Missing or Excess of one or more teeth usually leads to occlusal and functional problems. In these cases, a complete clinical and radiographic examination accompanieal by a precise history should be performed to plan a suitable surgical-orthodontic-prosthetic treatment

Comparison of Digital Cephalometric Tracing by Onyx Ceph Software versus Manual Method

Background: Cephalometric radiography is a valuable method for diagnosis, treatment design, and also for the study of growth and development of teeth and craniofacial complex. In addition to the above features, Onyx Ceph software has the ability to predict soft and hard tissue changes after jaw surgery and can be useful for orthodontists and surgeons. Aim: The purpose of this study was to compare the accuracy of linear and angular measurements between these programs and manual measurements. Materials and Methods: For this study, 30 cephalograms from 30 different patients of orthodontic candidates were selected. Initially, cephalometric analysis of printed stereotypes was performed manually and then using Onyx ceph v. 3.6 software. Eight angular measurements (FMA/IMPA/SNA/SNB/PNB/1.NA/1.NB/Y-AXIS) and four linear measurements (Co-Gn, Co-A, E-line lower lip, and LAFH). 10 lateral cephalograms were randomly selected and re-traced (5 cases manually and 5 digitally). Data were analyzed by t-test. Results: Regarding the results of the t-test, it was found that the measurements of the variables between the two groups were not statistically significant and these differences are significant only for the three variables: FMA, 1-NA, and 1-NB. Furthermore, there was no significant difference between any of the variables in these two different times for both manual and digital tracing methods. Conclusion: In this study, comparing the manual method and the digital method, there was only a significant difference between the FMA variables and there was no significant difference between the two periods of initial and recurrent trace. The results of this study showed that the digital tracing with the Onyx Ceph software had a same accuracy in comparison to manual tracing and could be used instead of the traditional methods. Clinical Significance: Due to the fact that digital tracing facilitates the tracing process and does not reduce accuracy, the use of these software could be recommended

Periodontal Problems Following Surgical Extraction of Impacted

Introduction:There are conflicting reports on the effects of surgical removal of impacted mandibular third molars on the periodontium of the adjacent teeth. The aim of this study was to compare the condition of the periodontium six months after extraction of impacted mandibular third molars with baseline values. Methods: Fifty patients with mesioangular impacted mandibular third molarsparticipated in this study. Probing depth (PD), Leo and Sillness' gingival index (GI), and clinical attachment level (CAL) in distobuccal, mid-distal, and distolingual surfaces of second molar teeth were assessed before surgical extraction of the third molars and 6 months later. To evaluate the changes in alveolar bone height (BH), two parallel PA radiographs obtained at the baseline and follow-up session. Data was analyzed with SPSS 11.0 software atthe confidence interval of 95%. Results: Thirty-eight females and 12 males participated in this study. Twenty-eight(56%) of impacted molar teeth were in the right side and 22 (44%) were in the left side. Baseline values of PD, CAL, and GI at three points of the distal surface of the mandibular second molar tooth had no significant differences with follow-up values (P-value> 0.05). According to the radiographs, baseline BH also had insignificant difference with follow-up height (P-value>0.05). Conclusion: Surgical removal of impacted mandibular third molar does not affect periodontium after 6 months

Complications of Bilateral Sagittal Split Osteotomy in Patients with Mandibular Prognathism

Introduction: Bilateral sagittal split osteotomy (BSSO) of mandible is vastly used in treatment of mandibular deficiencies and discrepancies. Since this method could affect esthetic as well as function, evaluating these effects from various aspects is crucial. This study assessed the effects of this technique on the function of masseter muscle, jaw movements, and sensory changes along with failures in screws used for fixation. Methods: 48 patients with mandibular prognathism participated. Electromyography (EMG) of the masseter muscle; limits of jaw movements including maximum opening (MIO), protrusive (PM), lateral movements (LLE and LRE); presences of sensory changes and two point discrimination test; and number of removed screws were recorded at the baseline, 3 months, and 6 months after surgery. Results: EMG activity of masseter decreased significantly 3 months after the surgery. However, after 6 months the masseter activity revealed no statistically significant difference with baseline activity. There was a significant decrease in MIO and PM after 3 months. The 6 month measurement of MIO and PM was also lower than baseline. However, no difference was observed between LRE and LLE in both follow up sessions. Among 46 patients, 27 patients developed lip paresthesia 3 months after surgery. After 6 month, lip paresthesia remained in 11 patients. Among 276 screws used for fixation 3 screws removed due to exposure to oral cavity and 2 due to patient discomfort. Conclusion: As BSSO in patients with mandibular prognathism revealed temporary functional and sensory changes, it is a safe and appropriate method in orthognathic surgery

Comparison of the Advantages and Disadvantages of Using Scalpel and Electrosurgical Techniques in the Intraoral Incisions in Orthognathic Surgeries

Introduction:With the advancement of the instruments for oral surgeries, use of alternative methods instead of traditional scalpels has been evaluated, The present study aimed to compare the complications associated with electrosurgery techniques and use of scalpel during and after orthognathic surgery. Materials and Methods:  In this split-mouth designed study, 20 patient who were candidate for orthognathic surgery were enrolled. Symmetrical incisions were made using electrosurgical methods on one side of the jaw and routine techniques with a scalpel number 15 on the other side. Evaluation of the techniques was performed during the surgery and six weeks postoperatively based on specific parameters, including the cutting time, and rate of scar tissue formation. Finally, the collected data from the implications of the two methods were compared using Man-Whitney U- test. Results: Mean cutting time was 6.63±1.22 and 10.19±1.95 minutes in the electrical cautery and scalpel groups, respectively, which denoted a significant difference between the groups (

A Large Ameloblastic Fibro-odontoma of the Maxillary Sinus

Introduction: Ameloblastic fibro-odontoma is a rare, benign, asymptomatic tumor. The term ameloblastic fibro-odontoma was first used by Hooker in 1967 as a separate lesion from ameloblastic odontoma.   Case Report: This case report describes an eleven years old female with large ameloblastic fibro-odontoma in the right maxillary sinus.   Conclusion: There is a low potential for recurrence after complete Enucleation of ameloblastic fibro-odontoma, but due to the risk of ameloblastic sarcoma after recurrence, the surgery should be perfect along with a careful follow up.