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. Author manuscript; available in PMC: 2011 Sep 1.
Published in final edited form as: Arch Oral Biol. 2010 Jun 26;55(9):663–669. doi: 10.1016/j.archoralbio.2010.05.014

Table 1.

Summary of the approximate stages of occlusal development and experimental progression.

Age* 12–13 wks 14 wks 16 wks 18 wks 20 wks 22~23 wks
Occlusal Stage M1/1 unerupted M1/1 mucosal penetration beginning M1/1 emerging from gingivae; no occlusion Non-extraction side M1/1 mesial cusps occlude Non-extraction side M1/1 mesial and distal cusps occlude Same as 20 wks
Experimental Procedures Pig Arrival; Radiograph Unilateral dp4, M 1 extraction; 1st bone label (Calcein) 2nd bone label (Alizarin red); Radiograph; Dental impression 3rd bone label (Tetracycline); Radiograph; Dental impression 4th bone label (Demeclocycline); Radiograph; Dental impression In vivo strain; EMG; Euthanization
Training graphic file with name nihms218119t1.jpg
EMG EMG EMG EMG Post-terminal: In vitro strain; Specimen stiffness; Sectioning
*

Exact ages of individual pigs varied for each occlusal development stage.