alterations in size, number and eruption

microdontia

teeth smaller than normal

aesthetics

clinical significance of microdontia

patients with pituitary dwarfism

microdontia commonly found in

crowns, veneers, composite restoration

treatment for microdontia

1. true generalized microdontia

2. relative generalized microdontia

3. focal or localized microdontia

classification of microdontia

macrodontia

teeth larger than normal

pituitary gigantism

macrodontia commonly found in

1. true generalized macrodontia

2. relative generalized macrodontia

3. focal or localized macrodontia

classification of macrodontia

true generalized macrodontia - intentional endodontic (anterior only for aesthetic)

relative generalized macrodontia - orthodontics

focal or localized macrodontia - intentional endodontics and crown

treatment for the classification of macrodontia

supernumerary teeth

Extra teeth, Normal morphology or Rudimentary and Miniature

Result from continued proliferation of permanent or primary dental lamina

etiology of supernumerary teeth

mandibular canine, premolars, molars (especially 3rd), anterior midline

supernumerary teeth commonly found in

esthetics

clinical significance of supernumerary teeth

odontectomy

treatment for supernumerary teeth

mesiodens -Supernumerary T. arising in the midline of the maxillae, between central incisors

peridens - each side of anterior portion

distomolar - 4th molars, distal to the maxillary 3rd molar

paramolar - situated buccally or lingually to a molar. Fully formed molar or … of tooth more than 6 missing teeth that is not fully formed but appears impacted “chunk”; rudimentary teeth that appears on lateral surfaces

supplemental - supernumerary that resembles regular tooth

natal - present at birth

neonatal - appears after birth, within first 30 days of life

supra eruption - already move down on the occlusal level of tooth

classification of supernumerary teeth and its meaning

esthetics

clinical significance of supernumerary tooth

odontectomy

treatment for supernumerary tooth

anodontia

absence of tooth or teeth

3rd molars, 2nd premolars, maxillary lateral incisors

anodontia commonly found in

complete anodontia - complete absence

partial or hypodontia - 6 or less missing teeth

oligodontia - more than 6 missing teeth

false anodontia - tooth lost or extracted that the dentist is unaware of

focal anodontia - 2nd primary molar, common in ankylosis

classifications of anodontia and its meaning

polygenic

etiology of anodontia

aesthetics, difficulty in eating / mastication

clinical significance of anodontia

complete denture, removable partial denture, fixed partial denture

treatment for anodontia

impaction

tooth failed to erupt in the oral cavity

3rd molar

impaction commonly found in

soft tissue obstruction

etiology of impaction

(maxillary and mandibular)

level a - occlusal level

level b - between occlusal and cej

level c - below cej

(mandibular)

class 1 - kasya

class 2 - half or semi kasya

class 3 - di kasha

Gregory and pell classification and meaning

vertical, horizontal, mesioangular, distoangular, buccolingual, inverted

winters classification

class 1 - palatally

class 2 - labial

class 3 - crown on palatal, root on buccal

class 4 - vertical

class 5 - edentulous

class 6 - unusual position

class of impacted canine

overcrowding

clinical significance of impaction

odontectomy

treatment for impaction