biostimulant effect of diode laser on acceleration of tooth eruption in children

This study was conducted to evaluate the biostimulant effect of diode gallium arsenide laser on the rate of eruption of permanent teeth in a group of Egyptian children. The laser beam was directed to an area apical to the dental follicle of the erupting tooth. The results revealed an evident acceleration in the rate of occlusal movement of the lased premolars. This can be considered as a consequence of the biostimulant power of laser on the alveolar bone apical to the erupting premolar as well as the dense connective tissue forming the dental follicle

Evaluation of low intensity gallium arsenide diode laser influence on the healing of the oral mucosaltissue wounds of induced diabetes

This study was performed to evaluate and compare the effect of Gallium Arsenide diode laser [Ga-As laser] as an adjunct to wound healing in experimental induced diabetes in rats. It was conducted on sixty adult albino rats, all animals had undergone excising small biopsy of the oral mucosa, and then thirty rats were subjected to low intensity laser therapy while the remaining thirty rats were used as diabetic control. Animals were sacrificed after one week and two weeks intervals and specimens were collected for microscopic as well as immunohistochemical evaluation. The correlation between different methods of assessment assured the findings of this study that laser treated animals showed accelerated healing compared to non-lased animals

Comparative evaluation of the antibacterial effect of co2 laser and naocl irrigating solution on root canal microorganisms

The purpose of this study was to compare the antimicrobial effect of CC laser irradiation to that of NaOCl irrigating solution separately and combined on human root canals infected with endodontic bacterial species. Fifty extracted single roots were instrumented, sterilized and then inoculated with a known concentration of staphylococcus aureus and streptococcus faecalis. The specimens were then divided into four groups, group I: untreated control group, group II: treated with 2.6% NaOCl, group III: treated with CO[2] laser at 5 watt, using 3 successive 10 sec. irradiation periods with 10 sec rest period inbetween and group IV: subjected to a combined treatment of both NaOCl and CO[2] laser as a final step of disinfection. After treatment of each of the 4 groups, the canals were flushed with sterile water onto blood agar plates and macConkey agar plates and cultured for 48 hours. The colony forming unites were counted and the quantitative results were statistically analyzed. The results showed a significant reduction in bacterial count in the three tested groups, with the combined treatment using both CO[2] and NaOC[l] proving to be statistically superior to either of them used alone

Evaluation of low intensity laser irradiation in treatment of induced osteoporosis

The present study was conducted on forty two adult albino rats attempt to evaluate the effect of LILI on the degree of radiographic bone density by using the Digora soft ware, histopathological bony changes and surface area measurments of bone repair through the image analyzer computer system. From those Forty -two rats, only sixth rats were maintained on normal diet as normal control group, the remaining thirty sixth rats were received the osteoporosis induced diet so, eighteen rats were subjected to LILI application on the lower jaw while the other eighteen rats were not subjected to laser therapy and were used for comparison with the lased animals and also with normal control group. The correlation between statistical analysis of radiographic bone density evaluation and surface area measurements of both lased and non-lased groups assured the findings of this study that the laser treated animals showed accelerated healing and bone deposition compared to non lased groups

carbon dioxide laser: a treatment modality in management of oral soft tissue lesions in children

The purpose of the present study was to compare the efficiency of carbon dioxide Laser to conventional scalpel surgery in management of oral soft tissue lesions in children. The study included ten patients with an age ranged between seven to thirteen years old presented with oral soft tissue lesions. The patients were selected from the out patient clinic. Pediatric Dentistry department. Faculty of Dentistry. Minia University. The patients were divided into two groups: laser group and scalpel group where soil tissue excisions were performed using either Co2 laser or scalpel surgery. The results revealed that Co2 laser was superior than scalpel excision in management of oral soft tissue lesions in children. Laser can deliver precise cutting of soft tissue with minimal bleeding giving a clear operating field with ideal visibility. There was no need for sutures or packs. The surgery itself was simple and less time consuming coupled with rapid healing and minimal postoperative complications. It was highly accepted by children and would instill a positive dental attitude, which is the main concern of pedodontist. It can be concluded that laser excision was superior to scalpel excision. It was well tolerated by patients with no intraoperative or postaperative adverse effects

new modality using CO2 modification for treatment of recurrent aphthous ulcer in children

The aim of this study was to apply a new modification of CO2 laser for treatment of aphthous ulcer in children. Twenty-four children suffering from RAUs, their age ranging from 5-14 years. The children were divided into two groups. The first group i.e. group I [12 patients] received CO2 laser at 1w power in a focused continuous mode for five minutes after wetting the ulcer with water. The second group [i.e. group II] received CO., laser in the same way but without wetting the ulcer. In both groups the ulcer were measured in mm[2] by a graduated and before laser application, just after application, 3 days after, 7 days after then one month later; and the changes in the size of the ulcer were recorded. Moreover, children were asked to answer questions concerning their pain sensation, eating capability and discomfort and all responses were tabulated. The results showed that CO2 laser application with or without wetting showed immediate pain relief and the child can eat spontaneously after application with no history of recurrence. While those in group I showed better results concerning postoperative oedema than group II

Enzymatic changes in the gingival tissues after radiotherapy

Twelve subjects with radiosensitive malignancies in the head and neck and 12 control normal patients with healthy gingival tissues are included in this study. A single specimen was taken from the gingiva of control patients, while 3 specimens where taken from the radiotherapy patients [before, after, and 6 months later radiotherapy]. Lypholisation of the tissues was done and Apizym kit was used. The results showed significant biochemical changes in the enzymatic activities of the gingival tissues after radiotherapy. A difference is quite apparent between control and radiotherapy group, for all enzymes except for estraselipase and B-galactosidase. These changes are expected to participate significantly in the histopathochemical and clinical changes in the role tissue after radiotherapy

Eosinophilic granuloma of jaw bones: report of 7 cases

Seven cases of eosinophilic granuloma were reported. The etiology, symptoms and clinical features are discussed briefly together with the relationship of eosinophilic granuloma to letterer Siwe disease and Hand Schuller-Christian disease. The frequent occurrence of oral lesions emphasizes the need for a thorough approach to diagnosis in as much as the oral lesions are often the initial features of the disease