Effect of Laser Biostimulation on Mandibular Distraction Osteogenesis: An Experimental Study.
Said Abd Allah Kamel Taha;
Abstract
The present study was conducted to evaluate the osseous response to laser biostimulation radiographically and histologically during distraction osteogenesis induced in the mandibles of mongrel dogs.
Eighteen dogs were divided into 3 groups I, II and III according to sacrifice periods, 6 animals(3 laser,3 control) in each group. The dogs were premedicated and anaesthetized by the ordinary technique of general anesthesia; mouth was scrubbed with Povidone Iodine 2% solution. In addition, skin at the right side of the mandible was prepared and painted with antiseptic solution. First, the right and left maxillary third incisor was extracted. Second, the prepared skin was incised 1cm bellow the inferior border of the mandible relevant to lower 2nd& 3rd premolar sites, then soft tissues were reflected laterally exposing the covering periosteum which were incised & reflected laterally and medially exposing bone at the inferior border of the mandible. Further reflection was made to the level of alveolar bone.
An osteotomy line was made between mandibular 2nd& 3rd premolars and the distraction device was placed and fixed along the bone segments with positional bicortical screws then the wound was closed in layers and the bone segments were maintained in neutral position for 7 days as a latency period. Then, the distractor device was activated in the rate of 1 mm per day for 10 days to achieve 10 mm distraction distance followed by consolidation period. During the period of consolidation, the test right mandibular side was laser irradiated using semiconductor Diode(Gallium Arsenide) laser in alternative five sessions in every other day with constant laser parameters (21) as follows:Wave length(λ) = 970 nm, power =2W,
Eighteen dogs were divided into 3 groups I, II and III according to sacrifice periods, 6 animals(3 laser,3 control) in each group. The dogs were premedicated and anaesthetized by the ordinary technique of general anesthesia; mouth was scrubbed with Povidone Iodine 2% solution. In addition, skin at the right side of the mandible was prepared and painted with antiseptic solution. First, the right and left maxillary third incisor was extracted. Second, the prepared skin was incised 1cm bellow the inferior border of the mandible relevant to lower 2nd& 3rd premolar sites, then soft tissues were reflected laterally exposing the covering periosteum which were incised & reflected laterally and medially exposing bone at the inferior border of the mandible. Further reflection was made to the level of alveolar bone.
An osteotomy line was made between mandibular 2nd& 3rd premolars and the distraction device was placed and fixed along the bone segments with positional bicortical screws then the wound was closed in layers and the bone segments were maintained in neutral position for 7 days as a latency period. Then, the distractor device was activated in the rate of 1 mm per day for 10 days to achieve 10 mm distraction distance followed by consolidation period. During the period of consolidation, the test right mandibular side was laser irradiated using semiconductor Diode(Gallium Arsenide) laser in alternative five sessions in every other day with constant laser parameters (21) as follows:Wave length(λ) = 970 nm, power =2W,
Other data
| Title | Effect of Laser Biostimulation on Mandibular Distraction Osteogenesis: An Experimental Study. | Other Titles | " تأثير الحث الحيوي لليزر على الشد العظمي للفك السفلي: دراسة تجريبية " | Authors | Said Abd Allah Kamel Taha | Issue Date | 2015 |
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