Dental Terminology PDF

Dental Terminology Dental Terminology Related to Tooth Origin and Formation Dentitio n Deciduo Perman Mixed us ent  Dentiti on The teeth in the dental arch Deciduous  A term used to describe the primary teeth. ...

Dental Terminology Dental Terminology Related to Tooth Origin and Formation Dentitio n Deciduo Perman Mixed us ent  Dentiti on The teeth in the dental arch Deciduous  A term used to describe the primary teeth.  Having the property of falling off or shedding.  The first set of teeth. Permanent  The second set of human teeth.  They are called succedaneous (to replace other teeth) Mixed  Deciduous+permanent= Heterodont  It begins with the appearance of the permanent first molars and ends with the exfoliation of the deciduous teeth. What is a succedaneous tooth? A permanent tooth that replaces a primary tooth. What teeth are succedaneous? Central and lateral incisors, canines, first and second premolars. What teeth are not succedaneous? First, second and third molars Why are some teeth non-succedaneous? Because they do not have primary predecessors  Odon t.....(prefix)= related to dentition -ex: odontoblast.....genesis (suffix)=related to the process of creation and formation --ex: osteogenesis  Exfolia te Physiologic loss of primary dentition To fall out Eruption  The process of penetration for the tooth to the surrounding tissues.  Breaking out The deciduous teeth exfoliate and permanent teeth erupt into the space  Prolifera tion --- → The process of increase in mass and number but with the same characters. Differentiation ----- → The process of acquiring different functions from the original source. Proliferation versus differentiation  ------ blast The function of tissue creation by a specialized cell type → example fibroblast ------ cyte The function of tissue maintaining by a specialized cell type → example fibrocyte ----- Clast The function of tissue destruction by a specialized cell type → example fibroclast  Tooth Surfaces and.1 Orientations Facial Surface of all teeth toward the cheek and/or the lips  Facial surface can be labial surface or buccal surface. a. Buccal Posterior tooth surface toward the cheeks b. Labial Anterior tooth surface toward the lips 2. Lingual and palatal Lingual The posterior surface of all lower teeth toward the tongue. Palatal The posterior surface of all upper teeth toward the palate. Posterior teeth surfaces palatal.3 Proxima Side surfaces of teeth l and distal surface are collectively Mesial surface called proximal surface. a. Mesial Side surface of a tooth closest to the midline b.Distal Side surface of a tooth farthest from the midline of the face. Proximal surfaces Proximal tooth surfaces Middl Dist e Mesi al al Incisal Cutting edge of anterior teeth Occlusal Grinding or chewing surface of all posterior teeth  1 1 4 3 2 Labial surface.1 2. Mesial surface 3.Distal surface 4. Incisal surface  2 1 3 Buccal surface.1 2. Lingual surface 3. Occlusal surface Crown divisions in thirds To make study and communication easier, the crown is divided into three halves. 1. Cervical third 2. Middle third 3. Incisal/Occlusal third (crown) Crown division Root divisions in thirds To make study and communication easier, the root is divided into three halves. 1. Cervical third 2. Middle third 3. Apical third (root)  Apical Relative to the root tip end of tooth (apex or root) Cervical Related to the middle or the gingival level of the tooth Root division  Coronal Related to the crown part Furcation →Place where tooth roots branch apart. --- -→ bifurcation of the molar  Terminology Related to Diseases Diagnosis Objective symptoms They are evidence observed by someone other than the patient. (Also, called signs) Subjective symptoms They are evidence of a disease as reported by the patient. For example, pain.  Etiolo gy Cause of the disease. Diagnosis Denoting and identification of the name of disease. Prognosis It is a prediction about the course (future) of the disease. xogenous disease (produced outside) It refers to causes outside the body. Endogenous disease It arises from within the cell or organism. It refers to causes arising from within the body Congenital disease It refers to condition inherited from  Acute(sharp, severe) It describes a disease with sudden onset and immediate symptoms such as high fever and pain or distress. Chronic(not acute) It describes a condition or a disease present over a long time, usually more than three months such as chronic anemia.