Development of the Permanent Dentition Flashcards
which sequence is more variable: permanent dentition or deciduous
permanent
girls are ahead of boys by an average of ______ in the eruption pattern
5-6 months
girls are ahead of boys in ______, except______
calcification; third molars
timing of eruption is consistent with _____- children who erupt any tooth early or late tend to acquire ________
dentition; others early or late
both sides should erupt at _____
the same time
different eruption sequnces explain _____
most frequently crowded teeth: maxillary cuspids and mandibular second bicuspids
what are the local influences that hasten permanent tooth eruption
- localized pathosis: periapical lesions (abscess), pulpitis and pulpotomy
- if primary tooth is extracted during active eruption of permanent tooth - AKA if more than 2/3 of the root is formed
what are the local influences that slow permanent tooth eruption
when a primary tooth is extracted before active eruption of permanent tooth AKA before root formation
what is increased arch width tied to
alveolar process growth ( both dental eruption and vertical process growth)
when does vertical alveolar process growth occur
-during general growth spurts
- different for maxila and mandible
how is vertical alveolar process growth different for the arches
divergent maxillary process translates into more arch width growth
what do arch width changes occur with
- dental eruption
- wider placement of the permanent teeth
- apposition of alveolar bone to support these teeth will result in increase in arch width
when does maxillary arch growth occur
- during growth spurts
- during eruption of incisors
- during eruption of the cuspids
no significant increases in intercanine width occur in either _____ after______
maxilla or mandible; the eruption of permanent canines
describe dimensional changes in the arches
- changes are variable
- different for males and females
- different for maxillary and mandibular arches
