occlusal problems in the mixed dentition Flashcards
define occlusal problems
any disruption in the way the tooth forms or erupts
give examples of abnormalities in tooth formation?
-dilaceration
-supernumeraries
-peg shaped incisors
-hypodontia
what causes crown root dilaceration?
usually trauma in the deciduous dentition- which displaces unerupted permanent crown/root which continues forming in a different direction forming a bend in the root
where do you most commonly see dilacerations of crown and root?
upper central/lateral incisors
what is a good indication of dilaceration of crown root?
-delayed eruption
what are supernumerary teeth?
additional teeth
what are supplemental supernumerary teeth?
teeth that resemble adjacent teeth- most common, 2s, premolars, 8s
what other supernumeraries may arise?
conical/tubercular supernumaries- tooth material but do not resemble normal tooth
what do supernumaries often cause?
crowding- not enough space
what can supernumaries cause?
-delayed/impeded eruption of permanent teeth
-delayed exfoliation of deciduous teeth
-cause impacted permanent teeth
what is the advantage of erupted supernumaries?
they can be extracted
what arch do supernumaries most commonly erupt in?
-maxilla
what are supernumaries in the maxilla midline called?
mesiodens
what is the management for supernumaries?
extraction if E or surgical removal if UE
where do peg incisors most commonly affect?
-upper lateral incisors
