Alveolar plate fenestrations and dehiscences of the human skull

By Larato DC.

Date: 04/1970
Journal: Oral Surgery Journal


•Purpose:  determine the incidence & distribution of fenestration \ dehiscence in human skulls.

•N= 3,416 teeth present and examined in 108 adult skulls of human Mexican Indian origin.


1.The skulls varied in age from the early 20s to past 70s.

2.The number of fenestrations & dehiscences, occlusal wear pattern and prominence of each tooth root  were recorded.

Most highlighted Results: 

1. 7.5% of all teeth examined exhibited fenestrations (4.3%) or dehiscences (3.2%).

oMax & Mand anterior teeth > posterior teeth.

o12.5% of all Max & 14.3% of Mand anterior teeth had either fenestrations or dehiscences.

oMost often in Max 1st molars and cuspids & Mand cuspids.

ocommonly associated with prominent tooth roots.

2.No relationship could be found between number of bony defects present & age of skull.

3.No definite relationship could be shown between fenestrations & teeth with trauma.

Clinical significance:   

Fenestrations and dehiscences could be found in any age group affecting mainly anterior teeth and teeth with prominent roots.