| P26 |
Distraction Osteogenesis To Relief Airway Obstruction In Pierre Robin Sequence Patient
Nadia Al-zahrani, Faten Mujalled, Sondos Abouzenada, Ahmed Alyamani.
Faculty of Dentistry King Abdul-Aziz University, Jeddah. KSA
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The Pierre Robin sequence consists of micrognathia (small retruded mandible), glossoptosis (tongue retro position into the pharyngeal airway), possible cleft palate, upper airway obstruction and growth retardation. The main problem in Pierre Robin sequence is airway obstruction. It can be mild and can be controlled with prone position but sometimes it can be life threatening (mortality rate is 5-30%) and require tracheostomy. Because of high complication of tracheostomy, distraction osteogenesis is an alternative treatment. It is done by lengthening the mandible and bringing the muscular insertions of the floor of the mouth forward, the antero-posterior dimensions of the airway are increased. Material and Method: In a study we report our experience at the Department of Oral and Maxillofacial Surgery , Faculty of Dentistry King Abdulaziz University,on patients who had tracheostomy and polysomnography-documented sleep apnea. Patients' age, medical and family history, cephalometric analysis and oxygen saturation were decumented before and after treatment. All patients underwent bilateral mandibular distraction using semibuired, unidirectional devices. They found improvement in cephalometric values; oxygen saturation is increased to 98 %( pre-operative 76%). Post distraction sleep studies demonstrated no obstructive sleep apnea. Conclusion : distraction osteogenesis is a viable treatment option for tracheostomy-dependent children with upper airway obstruction secondary to micrognathia.
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Saudi Dental Journal 2008;20 (SI)-Abstr.P26.
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| P27 |
Reinforcement of Structurally Compromised Endodontically Treated Teeth for Aesthetic Dowel Systems
Dr. Fahad Fatiny
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Saudi Dental Journal 2008;20 (SI)-Abstr.P27.
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| P29 |
Wear Process of Natural Dentition and Restorative Materials
Dr. Walaa Magdy Ahmed , Prof. Mohammed M. Shehata
Faculty of Dentistry King Abdul-Aziz University, Jeddah. KSA
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Wear is progressive phenomenon characterized in the oral cavity by the loss of the anatomical form of natural dentition and/or restorative materials. Wear can be defined as "the ultimate consequence of interaction between surfaces which is manifested in gradual removal of the materials.
The following points will be fulfilled in the lecture:
I. Wear classification according to mechanism, clinical manifestations and location.
II. Clinical and laboratory wear assessment.
III. Natural permanent and deciduous teeth wear.
IV. Restorative materials wear.
IV. 1. Factors affecting the wear process of dental materials.
IV. 2. Principles of wear in individual materials:
a.Indirect restorative materials (gold alloys, base metal alloys, dental ceramics and dental polymers).
b.Direct restorative materials (amalgam restorations, glass-ionomers and composites).
V. Complications of wear.
VI. Management of tooth surface loss.
VII. Alternative (Herbal) treatment of tooth surface loss.
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Saudi Dental Journal 2008;20(SI)-Abstr.P29.
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| P30 |
Subcutaneous Emphysema during a Dental Procedure
Arwa Z. Gazzaz
Faculty of Dentistry, King Abdul-Aziz University, Jeddah. KSA
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Subcutaneous emphysema is the condition in which air or other gases penetrate the skin and submucosa causing soft-tissue distention. We present one of the youngest emphysematous case reported related to dental treatment. The patient presented subcutaneous emphysema following Inferior alveolar nerve block and using air-way syringe. The features of the condition and its treatment are reviewed in this report.
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Saudi Dental Journal 2008;20(SI)-Abstr.P30.
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