Radiodensitometric study for evaluation of bone mineral density around dental implants after zoledronic acid treatment in ovariectomized rats

The purpose of this study was to evaluate the effects of intravenous zoledronic acid applied systemically on osseointegration of dental implants and the surrounding bone mineral density (BMD) in the ovariectomized rats. 36 rats were divided into three groups: control (CTRL), ovariectomy (OVX), and ovariectomy-zoledronic acid (OVX/ZOL). The rats in the CTRL group underwent sham surgery, while rats in OVX and OVX / ZOL group underwent ovariectomy. After 12 weeks, rats from OVX / ZOL were injected with 0.04 mg/kg ZOL intravenously once a week for 6 weeks. The rats from CTRL and OVX groups were injected with 0.9% NaCl. Implants were placed in the left tibia. After 8 weeks, rats were sacrificed and tibia bones were removed for radiodensitometric examination. Digital radiographs of bones? lateral surface were taken. The BMD was measured by using radiographic analysis software. Statistically significant differences were found between all groups (p<0.05). While highest mean BMD values were observed in the CTRL group, the lowest were in the OVX group. The systemic use of ZOL has increased the bone density around the implants inserted osteoporotic rat tibia

Multiple Abnormal Unerupted Mandibular Permanent Molar Teeth: A Case Report

Abnormal multiply unerupted permanent molars have long received the attention of anatomists and maxillofacial surgeons besides the other developmental teeth anomalies. This paper presents a clinical case of a 23-year-old male patient who was admitted to the department of maxillofacial surgery in faculty of dentistry in Gulhane Medical School with a six month history of pain at the rest position and during chewing and also tender on his right corpus of mandible. The impaction which resulted in eruption failure and anatomical dislocation of the normally developed three mandibular molar teeth was found. It was defined facial asymmetry on his right side in extra-oral examination. Diagnosis of multiple abnormal unerupted mandibular molar teeth was confirmed by panoramic and 3D CT images. The unerupted inverted tooth was the third molar which is positioned to basis of the mandible on the right side. In the other side, the first molar was placed on basis of mandible and located distoangulary. The second molar was located on middle of the left corpus mandible vertically. And also, the third molar was erupted mesioangulary. The arch-length was evaluated by the oral surgeon. Mesiodistal distance between the teeth was to be sufficient. Causes of impacted permanent teeth might have been influenced by local factors such as prolonged deciduous tooth retention, malposed tooth germs, but not causing arch-length deficiency and supernumerary teeth. Abnormalities such as those reported in the present case are significant during maxillofacial surgery

Comparison of the oral health-related quality of life and dental pain in symptomatic irreversible pulpitis and pericoronitis

AbstractBackground/purposeThe oral health-related quality of life (OHRQoL) reveals important information about a patient's perceptions in clinical practice, and pain is a critical point when evaluating OHRQoL in clinical practice. The aim of the study was to compare pain patterns by means of the Dental Pain-Screening Questionnaire (DePaQ) and an OHRQoL evaluation between symptomatic irreversible pulpitis and pericoronitis.Materials and methodsIn this cross-sectional study, 50 patients with symptomatic irreversible pulpitis (with a female:male ratio of 22:28 and a mean age of 35.6±11.8 years) and 38 patients with pericoronitis (with a female:male ratio of 21:17 and a mean age of 26.3±9.08 years) were selected. In addition to a visual analogue scale (VAS, 0–100mm), dental pain was evaluated by means of a Dental Pain Questionnaire (DePaQ). The Oral Health Impact Profile-14 (OHIP-14) was used to examine the OHRQoL status.ResultsScores of the OHIP-14 and VAS were significantly higher in patients with irreversible pulpitis (29.9±11.8 and 91.80±10.03, respectively) compared to those suffering from pericoronitis (18.6±8.7 and 51.05±36.67, respectively; P<0.001). According to the DePaQ, the presence of continuous pain, pain radiating to the surrounding area, pain when chewing or eating on the side of the mouth with the affected teeth, pain experienced as an electric shock, and difficulty sleeping were related to a poor OHIP-14 score in symptomatic irreversible pulpitis (33.5±10.57, 30.82±11.4, 30.30±11.55, 33.92±10.28, and 27.53±11.77, respectively) compared with those with pericoronitis (20.09±11.27, 20.37±7.85, 19.64±7.87, 20.56±9.69, and 19.88±7.9, respectively; P=0.003, <0.001, <0.001, <0.001, and 0.005, respectively). VAS scores significantly differed between groups according to all DePaQ items (P < 0.05).ConclusionThe DePaQ gives detailed information about clinical conditions related to pain and the OHRQoL status in both symptomatic irreversible pulpitis and pericoronitis. VAS scores differed between the groups according to the DePaQ items

Clinical and stereologic evaluation of osteochondroma

Osteochondroma is a benign tumor that is unusual in the maxillofacial region. Anatomy of the region, especially the mandible, is important for surgical intervention for the condylar osteochondroma. The present case report describes evaluation of condylar hyperplasia with emphasis on the advantages and disadvantages of sterolithographic solid model and stereologic techniques for preoperative surgical planning, operation time, and prognosis. Condylar osteochondoma was diagnosed by panoramic radiograph and 3-dimensional computerized tomography (3DCT) as well as histopathologic analysis in a male patient. Before surgery, a stereolithographic model was created and stereologic method was used based upon 3DCT. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2009; 108: e52-e56