The Effect of Low-Intensity Laser Therapy on Bone Healing Around Titanium Implants: A Histometric Study in Rabbits

Purpose: This study aimed to histometrically evaluate the influence of low-intensity laser treatment on bone healing around titanium implants placed in rabbit tibiae. Materials and Methods: Each tibia of 12 adult rabbits received a 3.3 x 6-mm titanium implant. The implants placed in the right tibiae were irradiated with a gallium-aluminum-arsenide diode low-intensity laser every 48 hours for 14 days post-operatively, and the left tibiae were not irradiated. After 3 or 6 weeks, the animals were sacrificed (six animals per period), and nondecalcified sections were obtained and analyzed for bone-to-implant contact (BIC) and bone area within the implant threads. Data were subjected to statistical analysis using analysis of variance (ANOVA) and the Tukey test. Results: BIC was significantly increased it) the laser-treated group at both 3 weeks and 6 weeks. BIC did not increase significantly with time (3 weeks versus 6 weeks). Conversely, bone area within the threads was significantly increased with time (3 weeks versus 6 weeks), regardless of whether the laser was used. Considering bone area within the threads, no significant difference was found for treatment, eg, with or without laser. Conclusion: Low-intensity laser therapy did not affect the area of bone formed within the threads, but it may improve BIC in rabbit tibiae. INT J ORAL MAXILLOFAC IMPLANTS 2009;24:47-51241475

A retrospective study of the potential complications during alveolar distraction osteogenesis in 55 patients

The aim of this retrospective study was to analyse the outcome of alveolar distraction osteogenesis for the correction of vertical defects in a large series of 55 cases. The existing bone deficiencies were secondary to atrophy after periodontal disease or tooth extraction. The overall success rate of this technique was 89.1%. The complications presented during treatment were divided into minor (no effect on final result, but immediate intervention required) 14/55 patients (25.4%), and major (lead to technique failure) 6/55 patients (10.9%). The frequency of minor complications was 8/27 in the anterior maxillary region, 1/27 in the anterior mandibular region and 15/27 in the posterior mandibular region. The frequency of major complications was 5/6 in the posterior mandibular region and 1/6 in the anterior maxillary region. The mean alveolar height achieved was 6 mm. The overall rate was 36.3%. On the basis of these results it was concluded that alveolar distraction osteogenesis is an effective technique to treat vertical alveolar ridge deficiencies.36161

Surgical Complications of Mandibular Condylar Fractures

The purpose of this study was to retrospectively evaluate the complications of 58 patients who underwent surgery for mandibular condylar process fractures. Data were collected from patients during a 10-year period (1999-2009). The data recorded included demographic data, etiology, diagnosis, type of condylar fracture, surgical approaches, and postoperative complications. A total of 58 underwent surgery for reduction of the condylar fractures. There were 22 patients with bilateral condyle fractures and 36 patients with unilateral condyle fractures, accounting for 65 surgeries. In 8 fractures, a preauricular approach was performed to access the fractures condyle, whereas the retromandibular approach was performed in 57 fractures. There were 2 temporary facial palsies, 1 permanent facial palsy, and 1 sialocele. There were no cases of hypertrophic scar, Frey syndrome, or salivary fistula. In conclusion, permanent deformities after surgical complications were unusual, and the results are acceptably safe.2241512151

KUNDSKAB SOM PRODUKTIONSFAKTOR: EN KOMMENTAR

Inferior alveolar nerve transposition and placement of endosseous implants is one of the treatment options for patients with an edentulous posterior mandible with inadequate bone height superior to the inferior alveolar canal. The possible complications associated with this technique include prolonged neurosensory disturbances, infection, and pathologic fracture. This report presents the surgical management of a patient who sustained a mandibular fracture after inferior alveolar nerve transposition for the placement of 3 endosseous implants.23113313

Prospective Clinical Assessment of Pulp Sensitivity After Chin Bone Harvesting

Proposal: Evaluate pulp vitality of mandibular teeth after chin bone harvesting. Materials and Methods: Thirty patients underwent chin bone harvesting and accompanied for 12 months, being submitted to testing for pulp vitality with Endo Ice refrigerant spray to produce a local temperature of -50 degrees C. The statistical analysis was executed with McNemar test with P value < 0.05. Results: Results show that canine teeth are most susceptible to alterations; 68.82% (181) of the teeth tested showed no loss of pulp sensitivity to cold 30 days after surgery (P < 0.05), and at the end of the study, that figure had risen to 100% (263) of all teeth included in the sample. Conclusions: Pulp vitality testing showed that 31.18% (82) of teeth experienced some loss of sensitivity, but by 12 months after surgery, all teeth had recuperated their pulp sensitivity to cold unaided. (Implant Dentistry 2013;22:199-202)22219920

Preoperative incisor inclination in patients with Class III dentofacial deformities treated with orthognathic surgery

Our aim was to evaluate cephalometrically the preoperative inclination of the incisors in a group of 50 patients with Class HI dentofacial deformities whose immediate preoperative lateral cephalometric radiographs were analysed after they had been treated by maxillary advancement. The radiographs were hand-traced by the same operator who made the cephalometric analysis. Mean values for each measurement were compared with the normal values using Student's t-test (p < 0.05). Results showed significantly increased inclination of the upper incisors, with a mean UI-NA angle of 27.58 degrees and a mean UI-PP angle of 116 degrees. The lower incisors were also inclined lingually, with a mean LI-NB angle of 22.53 degrees and a mean IMPA of 83.13 degrees. Thirty-five of the patients had labial inclination of the upper, and 28 lingual inclination of the lower, incisors. Mean inclinations of upper and lower incisors differed from the normal values, and the inclination of the lower incisors was more likely to be decompensated than that of the upper incisors. (c) 2011 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.506533536Brazilian Ministry of Education, PDEE program [0151/08-4]Brazilian Ministry of Education, PDEE program [0151/08-4

Evaluation of different treatments for oroantral/oronasal communications: experience of 112 cases

This retrospective study analyzed the etiologic factors, location and treatments for patients with oroantral or oronasal communications (OAC or ONC). Data analysis extended to gender, age, etiology, location, type of treatment and short-term complications from January 1988 to May 2004. A total of 112 patients with 101 (90%) OAC and 11 (10%) ONC were included. The main etiology for OAC was tooth extraction (95%) with similar prevalence between right (49%) and left (51%) side. For ONC, pathological conditions (27%) and exodontia (27%) were the most prevalent. For the treatment of OAC, suture was the technique most frequently used (60%), followed by buccal fat pad (28%), buccal flap (9%), palatal flap (2%) and one dental transplant (1%). For ONC, the following treatments were used: suture (46%), buccal flap (36%) and palatal flap (18%). Failure to eliminate the communication occurred in six (6%) patients of the OAC group and three (27%) of the ONC group. The results confirm that tooth extraction was the most common etiologic factor for ONC and OAC. Suture, when the communication was small (3-5 mm), and the use of a buccal fat pad (100% successful), when a larger communication existed (> 5 mm), seemed to be the two best choices for treatment.35215515

Descriptive Study of Surgical Approach for Zygomatic Complex Fractures

The aim of this research was to evaluated the surgical approach for zygomatic complex and zygomatic arch fracture. Was doing a retrospective study, evaluating clinical charts of patients with treatment between April 1 of 1999 and December 31, 2008. Were study sociodemographic variables, type and quantitative fracture and displacement of osseous fragment. A descriptive analysis was do it surgical approach used and when was necessary, realized a statistical analysis with Chi-Square test for nominal variables, with p<0.05 for significant statistic. One hundred fifty tree patient was surgically treated for ZC fracture, doing 251 surgical approach. More realized approach was intraoral, follow for subciliary and superciliary approach. Always exist more approach for zygomatimaxillary pillar, follow to infraorbitary rim and frontozygomatic suture, with a little difference. Was not possible show statistic association between de veriables and the quantity of surgical approach for ZC fractures. Surgical approach was response to individual necessity, obtained certain indications more than surgeon preferences.27229930

A Retrospective Analysis of Submental Intubation in Maxillofacial Trauma Patients

Purpose: The aim of this study was to retrospectively evaluate the frequency, indications, and outcomes of airway management by submental intubation in maxillofacial trauma patients. Patients and Methods: Data were collected from patients during a 10-year period (1999-2009) from clinical notes and surgical records from each patient using a standardized data collection form that was specifically developed to investigate the epidemiological features of maxillofacial trauma. Data about anesthetic management were assessed. Results: During the study period, 3,149 patients, victims of facial trauma, were evaluated: 2,090 patients presented facial fractures; 674 were submitted to surgery under general anesthesia. There were 449 nasal intubations, 204 oral intubations, 6 tracheotomies, and 15 submental intubations. Submental intubation permitted reduction and fixation of all the fractures without the interference of the tube during surgical procedure in all of the patients. There were no intra-or postoperative complications. Conclusions: Submental intubation is a simple, safe, with low morbidity technique for operative airway management in maxillofacial trauma patients when there are fractures involving the nasal region and concomitant dental occlusion disturbances. (C) 2011 American Association of Oral and Maxillofacial Surgeons J Oral Maxillofac Surg 69: 2001-2005, 20116972001200

Oral myiasis caused by Cochliomyia hominivorax treated nonsurgically with nitrofurazone: report of 2 cases

Accidental oral myiasis are caused by ingestion of fly's eggs or direct oviposition over a compromised area of the host. Here the authors report 2 cases of accidental oral myiasis caused by direct oviposition over an edentulous area in the first patient and in the periodontium in the second patient. Both cases were treated successfully with topical applications of nitrofurazone during a 3-day period. No surgical procedures were required. Flushing the wound with nitrofurazone caused the maggots to endure a liquid-filled anaerobic environment. Healing was uneventful in the 2 cases presented and no adverse reactions were observed during the treatment after 2 months of follow-up. The maggots of both patients were identified as Cochliomyia hominivorax. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2010; 109: e70-e73)1093E70E7