ABSTRACT
PURPOSE: This study aimed to assess the reliability of ultrasonography (US) in comparison with cone-beam computed tomography (CBCT) as a tool for monitoring the healing of jaw lesions. MATERIALS AND METHODS: Twenty-one radiolucent lesions in jaws referred to the Oral Surgery Department at our institution were selected for this study. All lesions underwent CBCT and US examinations. The anteroposterior, superoinferior, and mesiodistal dimensions of the lesions were measured on CBCT and US images before surgery and at 6 months after surgery. The dimensions were compared between the US and CBCT images. Blood-flow velocity around the lesions was measured by color Doppler before surgery and at 1 week and 6 months after surgery to assess the capability of US to show changes in blood-flow velocity around the lesion. RESULTS: Before surgery, there were no significant differences between US and CBCT in the mesiodistal and anteroposterior dimensions, although a significant difference was found in the superoinferior dimension (P < .05). However, at 6 months after surgery, significant differences were found between US and CBCT in all dimensions, and it is likely that the US measurements more accurately reflected the extent of healing. The average blood-flow velocity increased at 1 week after surgery (5.84 cm/s) compared with the velocity before surgery (4 cm/s) (P < .05). Then, at 6 months after surgery, the blood-flow velocity significantly decreased (3.53 cm/s) compared to the velocity measured at 1 week after surgery (P < .05). CONCLUSION: US with color Doppler was confirmed to be a more efficient tool than CBCT for monitoring bone healing.
Subject(s)
Bone Diseases , Cone-Beam Computed Tomography , Jaw , Surgery, Oral , UltrasonographyABSTRACT
Clinical evaluation of the Neural complication after harvesting of mandibular ramus block grafts, by testing the mento-labial sensory disturbance and the vitality of teeth in the ipsilateral side. 13 patient [7 male-6 female] aged 19-47 years [mean 30.3] was included in this study where 15 ramus block grafts was harvested for alveolar ridge augmentation before implant placement, and the study was done in the oral and maxillofacial surgery department and implant clinics in Damascus university-dentistry school, all patients were followed up for 1 week-1 month-2 month- 4 month by testing the labio-mental sensory and the thermal pulp response, the statistical analysis was made by Cochran's Q test [p value<0.05]. The neuro-sensory complication rate was 6.7% and it was temporary with spontaneous resolve within 4 months, no alteration of the vitality of teeth was noted during the follow-up period. Ramus block graft are considered as a safe and suitable technique to augment the alveolar ridge, it is associated with fewer and temporary neural complication and does not alter the vitality of teeth when preformed as described in this study
ABSTRACT
Cysts are more frequent in jaws comparing to other body bones, although their treatment is simple and depends on surgical approach as a first choice, still they are important due to their clinical complication. The aim of this retrospective study is to determine the percentage of radicular, dentigerous, odontogenic keratocysts and non-odontogenic cysts percentage in Damascus, Syria, and comparing these results with previously recorded records from other countries. a retrospective study was conducted to patients suffering from jaws cyst, being diagnosed and treated in Damascus in the period 2006-2010. The Surgical and Pathological reports of these cases were analyzed with regard to age, sex, anatomical distribution and diagnosis. About 36% of jaw cysts occurred in patients aged 20 to 39 years, and the male to female ratio was 3:2. Of the 644 cases, [70%] were located in the mandible, the remaining [30%] in the maxilla. Radicular cysts were by far the most common type of cysts [49%] followed by dentigerous cysts [23%], odontogenic keratocysts [22%] and non-odontogenic cysts [5%]. These incidence of jaws cyst goes in accordance to international ratios except minor changes
ABSTRACT
The aim of our study was definition of the exact mechanism by which quinolone harm the immature cartilage causing arthropathy, and upon these results we can determine the suitable treatment for this damage. This effect was studied in four groups of juvenile wistar rats as following:1- normal group.2- the group of pefloxacine with a dose 15 mg/kg per day for one month. 3- the group of pefloxacine 15mg/kg per day for one month with addition of the magnesium ions with compensate amount 84mg/kg per art. 4- the group of pefloxacine 15mg/kg per day for one month with addition of vitamin E with compensate amount75mg/kg per rat. The drugs were administered by incubation tube for one months, and at the end of the experiment blood samples were took from animals hearts preparing for measuring malondialdehide, then animals were scarified and the maximum extension angle of the knee joints was measured, then we put the joints in the formol for the histological study. Pefloxacine increased the values of maximum extension angle significantly in compare to the normal group and the control group, with significant improvement in the group of magnesium ions and the group of vitamin E but non of each group could return the cartilage to the normal condition. The results of malondiadehyde assay inssure the effect of free radicals in this arthropathy. Histological study: pefloxacine damage significantly the cartilage and the damage was decreased in the addition of magnesium or vitamin E. There is a lot of factors participate in causing the arthropathy which induced by taking quinolone and this pathology don't confine on the participate of magnesium ions or oxidative stress.