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Oral Surgery

Orthognathic Case Presentation

Nasolabial angle  670(1020±8) Upper lip protrusion   4mm(3±1) Lower lip protrusion   4mm(2±1) Mentolabial sulcus  5(.5) Vertical lip chin ratio  .35(.5) Maxillary incisor exposure  0 mm(2±2) Interlabial gap  0 mm(2±2)   N-ANS   58mm(50±2.4) ANS- Gn  83mm(61.3±3.3) Mp-Hp  560(24.2±5) PNS-N  35mm(50.6±2) Upper incisor-NF  55mm(24.2±5) Lower incisor-MP  72mm(40.8±1.8) Upper Ist molar-NF  …

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Fibro-osseous

CLASSIFICATION:  By Waldren A. Developmental/Hereditary Cherubisim Gigantiform cementoma B. Reactive/Reapartive Traumatic Periosteotitis Garre’s Osteomyelitis Sclerosing osteomyelitis Central Giant cell Granuloma Osseus keloid Periapical Cemental Dysplasia Aneursymal bone cyst C. Neoplasm Osteoma Osteoid Osteoma Osteoblsatoma Ossifying fibroma Juvenile Ossifying fibroma D. Idopathic Fibrous Dysplasia Pagets disease Solitary bone cyst A. Fibrous …

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Osseointegration – Dental Implants

CONTENTS: INTRODUCTION. DEFINITION. HISTORICAL REVIEW. NORMAL BONE STRUCTURE AND PHYSIOLOGY. BIOLOGICAL PROCESS OF OSSEOINTEGRATION. BIOLOGICAL ATTACHMENT OF OSSEOINTEGRATION. THERIES OF OSSEOINTEGRATION. FACTORS INFLUENCING OSSEOINTEGRATION. REVIEW OF LITERATURE. FUTURE CONCEPTS OF OSSEOINTEGRATION. CONCLUSION. BIOCOMPATIBILITY BIOMECHANICS. IMPLANT DESIGN. SURFACE ROUGHNESS OF IMPLANT. SURFACE MODIFICATION OF IMPLANT. HEAT PRODUCTION DURING OSTEOTOMY. CONTAMINATION. PRIMARY …

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Odontogenic Origin

Histopathology : Sections show superficial facial necrosis with blood vessels occluded by thrombi. Dense infiltration of neutrophils observed Sub cutaneous fat necrosis and vasculitis are also evident         “Suggestive of necrotizing fascitis” CULTURE AND SENSITIVITY RESULTS: Microbiology: pus Type of swab                Neck Culture  Culture results           A growth                   Streptococcal species Antibiotic sensitivity …

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Malignant Melanoma of Lingual Gingiva with Ipsilateral Submandibular Lymph Node Metastasis

M. Pandey, E. K. Abraham, A. Mathew, I. M. Ahamed: Primary malignant melanoma of the upper aero-digestive tract. Int. J. Oral Maxillofac. Surg. 1999; 28: 45-49. N. Tanaka, M. Mimura, K. Ogi, T. Amagasa: Primary malignant melanoma of oral cavity: Assesment of outcome from the clinical records of 35 patients. …

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Zygomatic Complex Fractures

MAXILLOFACIAL INJURIES Zygomatic complex fractures                  Clinical Features  ENOPHTHALMOS Inferior & posterior   displacement Expansion of orbit EXOPHTHALMOS Medial dislocations    MAXILLOFACIAL INJURIES    Zygomatic complex fractures              Clinical examination    Palpation:  Step / tenderness / mobility  Supra-orbital rim  F-Z suture  Infra-orbital rim  Paresthesia     (lip, nose 14-11 + gingiva)

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Zygomatic Complex Fractures

MAXILLOFACIAL INJURIES Zygomatic complex fractures Radiographic examination Occipito-mental view (PNS view, Waters position)   Fronto-zygomatic suture   Zygomatico-maxillary         buttress   Inferior orbital rim   MAXILLOFACIAL INJURIES Zygomatic complex fractures                 Management  Restoration of form & function Anatomic reduction Treatment: “Surgical intervention”                   Closed v/s Open Displacement & comminution Exposure of …

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Fractures of the Midface 1

MIDFACE   FRACTURES Le-Fort III Fracture ( High transverse/Suprazygomatic/Craniofacial disarticulation) Fronto-nasal suture Ethmoid cribriform plate  Frontal process maxilla Medial wall orbit Optic foramen Inferior orbital fissure Pterygoid lamella Lateral wall of orbit Z-F   suture   MIDFACE   FRACTURES Applied surgical anatomy Classification Clinical features  Radiological features Management

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Maxillofacial Injuries Management

MAXILLOFACIAL INJURIES MANDIBULAR FRACTURES Classification: type of displacement (angle) Angle of mandible   Extra oral:Gonion   Intraoral: Junction of alveolar     bone and ramus Fracture of angle mandible   Greater fragment :teeth bearing segment   Lesser fragment: ramus   MAXILLOFACIAL INJURIES MANDIBULAR FRACTURES Condylar Fractures Clinical features Pain & Tenderness Painful limitation …

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Maxillofacial Injuries Management

MAXILLOFACIAL INJURIES MANDIBULAR FRACTURES Classification: type of displacement Angle of mandible   Extraoral:Gonion   Intraoral: Junction of alveolar     bone and ramus Fracture of angle mandible   Greater fragment :teeth bearing segment   Lesser fragment: ramus MAXILLOFACIAL INJURIES MANDIBULAR FRACTURES Management    Edentulous mandibles  Treatment Methods Open reduction & fixation Intraosseous wiring …

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