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The effect of mandibular first premolar extraction on third molar space |
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| Authors: | M E Richardson |
| Affiliation: | Orthodontic Department, School of Dentistry, Royal Victoria Hospital, Belfast, Northern Ireland. |
| Abstract: | Change in molar space is compared in 48 mandibular first premolar extraction cases and 46 non-extraction cases over a five year period. Significantly greater increase in molar space is found in extraction cases. It is, to some extent, related to the initial degree of crowding. |
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