Experimental fractures of monkey mandibles

Relationship between the presence of unerupted mandibular third molars and fractures of the mandibular condyle

“…The mandibular angle region with an unerupted third molar is an area of lowered resistance to external forces 9 . This observation has also been confirmed by experimental studies on monkey mandibles 14 . REITZIK et al 14 have showed that the mandible with unerupted third molars required 40% less force to be fractured than the mandible with fully erupted third molars, and they suggested that the unerupted third molars could weaken the mandible because the tooth occupied more of the osseous space.…”

Eruption Status of Third Molar and Its Possible Influence on the Location of Mandibular Angle Fracture: A Retrospective Analysis

“…The most important factor to indicate the presence of M3 is the reduced amount of bone at the angle, and this hypothesis is supported by the study of Reitzik et al [19]. They showed that the mandibles containing incompletely erupted M3 fractured at approximately 60 % of the force required to fracture the mandibles containing fully erupted M3 by using the dry isolated vervet monkey mandible.…”

Experimentelle Untersuchung zur biomechanischen Stabilität unterschiedlicher Unterkieferosteosynthesen

“…Hierbei ist jedoch zum einen keine kontrollierte Frakturlokalisation möglich, zum andern kommt es durch die Art der Fixierung häufig zu Kombinationsfrakturen, deren osteosynthetische Versorgung durch Erhö-hung der Einfluss nehmenden Variablen nicht reproduzierbar messbar ist. Auch die von Reitzik et al [27] beschriebene Frakturerzeugung durch Fixierung von Unterkieferhälften in einer Zugapplikationsmaschine scheint nicht praktikabel, da in der vorliegenden Studie gesamte Unterkieferpräparate definiert und reproduzierbar frakturiert werden müssen.…”