This document provides an overview of surgical anatomy related to the mandible, maxilla, muscles of mastication, and vital structures of the oral cavity. It describes key anatomical features of the mandible such as the external and internal oblique ridges, mylohyoid ridge, genial tubercles, and mental protuberance. The maxillary structures discussed include the palatal vault, palatal exostosis, and maxillary tuberosity. The muscles of mastication covered are the masseter, temporalis, medial pterygoid, and lateral pterygoid. The neurovascular bundle, lingual nerve, and inferior alveolar nerve are identified as vital structures. Blood supply to the

1. Guided By: Presented By:
DR. K.S. STELIN (HOD) DR. MARIYAM MOMIN
DR. PARUL ANEJA (READER) I YEAR PG
DEPARTMENT OF PERIODONTOLOGY & ORAL IMPLANTOLOGY.

2.  Introduction
 Mandible
 Maxilla
 Muscles
 Muscles of mastication
 Vital structures
- Neurovascular bundle.

3.  Surgical anatomy can be
defined as the knowledge of
anatomical facts that have
local significance in
relation to surgical therapy.

4. MANDIBLE

7. EXTERNAL OBLIQUE
RIDGE
INTERNAL OBLIQUE
RIDGE

10. MYLOHYOID RIDGE GENIAL TUBERCLES

11. MENTAL
PROTRUBERANCE AND
TUBERCLE
MANDIBULAR TORUS

17. INCISIVE CANAL &
FORAMEN
GREATER PALATINE
FORAMEN

18. PALATAL VAULT PALATAL EXOSTOSIS

19. MAXILLARY
TUBEROSITY
MAXILLARY SINUS

20.  MENTALIS MUSCLE

23.  Masseter
 Temporalis
 Medial pterygoid
 Lateral pterygoid

26. Medial pterygoid

27. NEUROVASCULAR BUNDLE
BLOOD SUPPLY
 The major arterial supply to the oral cavity comes primarily from the
lingual, facial and maxillary arteries which are branches of external
carotid artery.

28.  The nerves of the oral cavity are primarily branches of the V cranial
nerve i.e. trigeminal nerve, which is made up of large sensory and small
motor branches. Three major branches of this nerve are:
- Opthalmic nerve
- Maxillary nerve
- Mandibular nerve.

30.  Lingual nerve
 Inferior alveolar nerve.