Influence of Oral Appliances for Mandibular Advancement on Dentitions Using a Strain Gauge Analysis: A Pilot Study

Table 1

Comparison of the strain on the incisors.

Recording period	Mean ± SD
	Site	Stretching strain	Compressive strain	Stretching versus compressive strains
Short	Upper incisor	2.5 ± 5.8	17.7 ± 7.9
	Lower incisor	25.3 ± 14.6	26.5 ± 33.7	NS
Long	Upper incisor	25.7 ± 33.9	67.8 ± 44.6
	Lower incisor	119.7 ± 2.6	60.6 ± 52.4

Stretching strain: upper-lingual side; lower-labial side.
Compressive strain: upper-labial side; lower-lingual side.
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NS = not significant.