- odontotomy
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- prophylactic o. a preventive operation in which imperfectly formed developmental grooves, pits, and fissures are opened up by means of a bur and filled to obviate future decay.
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odon·tot·o·my (o″don-totґə-me) [odonto- + -tomy] the operation of cutting into a tooth, especially incision into an occlusal groove.
Medical dictionary. 2011.