Oral And Maxillofacial Surgery

Joint Lubrication Mechanisms Weeping Lubrication Occurs at high loads Hydrostatic pressure > osmotic pressure Water squeezed from extracellular matrix Contributes to joint surface lubrication Boundary Lubrication Occurs under low loads Cartilage Loading Physiology Joint movement → increased internal hydrostatic pressure When hydrostatic pressure exceeds proteoglycan osmotic pressure Water expulsion from extracellular matrix occu…

Frenectomy- Overview and Techniques A frenectomy is a surgical procedure that involves the removal of a frenum, which is a thin band of fibrous tissue that connects the lip or tongue to the underlying alveolar mucosa. This procedure is often performed to address issues related to abnormal frenal attachments that can cause functional or aesthetic problems. Key Features of Frenal Attachment A frenum consists of a thin band of fibrous tissue and …

Sentinel node: First node receiving lymphatic drainage from tumor. Drooling management: Bilateral submandibular duct relocation to posterior tonsillar pillar (preferred). Bilateral parotid duct relocation. Sublingual salivary gland tumors: <1% of salivary neoplasms; >80% malignant (adenoid cystic/mucoepidermoid carcinoma). FNAC for salivary gland pathology: Specificity: 88 – 99%; Sensitivity: 71 – 93%. Sistrunk o…

Classes of Hemorrhagic Shock (ATLS Classification) Hemorrhagic shock is a critical condition resulting from significant blood loss, leading to inadequate tissue perfusion and oxygenation. The Advanced Trauma Life Support (ATLS) course classifies hemorrhagic shock into four classes based on various physiological parameters. Understanding these classes helps guide the management and treatment of patients experiencing hemorrhagic shock. Class Descriptions …

Mid – face distraction: Not performed until 3.5 years to ensure adequate bone stock. Distraction osteogenesis principle: Stress – tension principle. Zero latency period: Followed in children due to high osteogenic potential. Distraction histiogenesis: Simultaneous lengthening of soft tissue envelope with bone. Consolidation phase: 6 – 8 weeks (twice the time of initial distraction). Inverted L osteotomy: For advancement…