2nd lecture dental structure (1).pdf

ANATOMY, NAMES AND TYPES OF TEETH Dr.Isra’ Al Bakri, BSc,MPhiL, PhD  Parts of the tooth Any tooth consists of : Crown Neck Root Crown: is portion of the tooth visible in the oral cavity, covered by white enamel layer. Root: is portion of the tooth that is invisib...

ANATOMY, NAMES AND TYPES OF TEETH Dr.Isra’ Al Bakri, BSc,MPhiL, PhD  Parts of the tooth Any tooth consists of : Crown Neck Root Crown: is portion of the tooth visible in the oral cavity, covered by white enamel layer. Root: is portion of the tooth that is invisible in the oral cavity and covered by cementum layer in the gum socket. Parts of the Root ◦ Apex: rounded end of the root ◦ Periapex (periapical): area around the apex of a tooth ◦ Foramen: opening at the apex through which blood vessels and nerves enters ◦ Furcation: area of a two or three rooted tooth where the root divides X-Ray view  layers of the tooth ◦ Crown: Pulp, Dentine, Enamel ◦ Root: Pulp, Dentine, Cementum ◦ Enamel: the hardest calcified tissue covering the dentine in the crown of the tooth (96%) mineralized. ◦ Dentine: hard calcified tissue surrounding the pulp and underlying the enamel and cementum. Makes up the bulk of the tooth, (70%) mineralized. ◦ Pulp: the innermost noncalsified tissues containing blood vessels, lymphatics and nerves ◦ Cementum: bone like calcified tissue covering the dentin in the root of the tooth, 50% mineralized  Oral and Dental Anatomy ◦ Oral anatomy: a fundamental of dental sciences on which the oral health care provider is based. ◦ Oral structures are essential in reflecting local and systemic health ◦ Oral anatomy used to assess the relationship of teeth, both within and between the arches ◦ Oral tissues are indicators of client’s oral and general health ◦ The color and morphology of the structures may vary with genetic patterns and age. Oral and Dental Anatomy Teeth SurfacesAnterior teeth Posterior teeth facial Occlusal mesial mesial Distal Distal Lingual/palatal buccal Palatal Teeth Surfaces Names of the teeth What is Primary tooth vs Permanent tooth? Q:1 Give me 2 other terms Q:2 Give me 2 differences used to describe primary between primary and teeth? permanent teeth ? Bonus Q:4 How many permanent teeth we Q:3 How many primary have? teeth we had?