Abstract
BackgroundThe reduction of canine teeth in adult males in whom permanent canine teeth eruption occurs should be considered due to the safety of humans or other monkeys. The objective of this study was to evaluate the complications of canine teeth reduction in macaques. Case presentation: Canine teeth reductions were performed in 8 rhesus and 2 cynomolgus macaques. Complications related to canine teeth reduction were evaluated at one to three week intervals during the experimental period by gross examination, CBC, and monitoring of appetite. One monkey showed a fistula due to periapical abscess and neutrophilia more than 2 years after canine teeth reduction, and extraction of the diseased canine tooth was performed; the other 9 monkeys showed no complications during the observation period. This report shows the effectiveness of canine teeth reduction with few complications.ConclusionCanine teeth reduction in male macaques is an acceptable procedure for reducing the severity of injury to humans or other monkeys.
Highlights
The reduction of canine teeth in adult males in whom permanent canine teeth eruption occurs should be considered due to the safety of humans or other monkeys
Permanent canine teeth eruption occurs at approximately 43 months old and approximately 41 months old in the maxilla and mandible, respectively, in rhesus monkeys (Macaca mulatta) and cynomolgus monkeys (Macaca fascicularis) [1]
As canine teeth become sharper after eruption, canine teeth reduction has been used for personnel protection [2, 3]
Summary
The reduction of canine teeth in adult males in whom permanent canine teeth eruption occurs should be considered due to the safety of humans or other monkeys. The objective of this study was to evaluate the complications of canine teeth reduction in macaques. Case presentation: Canine teeth reductions were performed in 8 rhesus and 2 cynomolgus macaques. Complete maturation of the canine teeth (closed apex) has been confirmed by the radiographic assessment of monkeys between 6 and 7 years old [2]. For the safety of researchers, canine teeth reduction can be conducted, and complications can be evaluated until the end of experiments in macaques [4].
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