Changes

==Introduction==

==Introduction==

Occasionally donkeys have a degree of '''brachygnathism''' (‘parrot mouth,’ ‘overshot jaw’, overjet or overbite). However, unless contact between opposing incisors is totally absent, this condition rarely causes the donkey trouble in eating. If major overgrowths do occur on the upper incisors in parrot-mouthed donkeys (in the presence of unopposed incisors) these overgrown upper incisors can lie in front of, and therefore trap, the lower incisors. This may even retard the growth of the mandible and cause [[Cheek Teeth Disorders - Donkey|'''secondary disorders of the cheek teeth''']].  

Occasionally donkeys have a degree of '''brachygnathism''' (‘parrot mouth,’ ‘overshot jaw’, overjet or overbite). However, unless contact between opposing incisors is totally absent, this condition rarely causes the donkey trouble in eating. If major overgrowths do occur on the upper incisors in parrot-mouthed donkeys (in the presence of unopposed incisors) these overgrown upper incisors can lie in front of, and therefore trap, the lower incisors. This may even retard the growth of the mandible and cause [[Cheek Teeth Disorders - Donkey|'''secondary disorders of the cheek teeth''']].  

'''Prognathism'''(‘sow mouth,’ ‘undershot jaw’ or underbite) is very uncommon in the donkey and is usually insignificant, unless there is total lack of occlusion between teeth. Major incisor overgrowths should be rasped level twice yearly. In contrast to cheek teeth floating, many donkeys greatly resent incisor teeth floating and require sedation (and therefore veterinary attention) for this procedure. Care should be taken not to expose incisor teeth pulp chambers when levelling overgrown teeth, and it may be advisable to perform such reductions in more than one session.

'''Prognathism''' (‘sow mouth,’ ‘undershot jaw’ or underbite) is very uncommon in the donkey and is usually insignificant, unless there is total lack of occlusion between teeth. Major incisor overgrowths should be rasped level twice yearly. In contrast to cheek teeth floating, many donkeys greatly resent incisor teeth floating and require sedation (and therefore veterinary attention) for this procedure. Care should be taken not to expose incisor teeth pulp chambers when levelling overgrown teeth, and it may be advisable to perform such reductions in more than one session.

==Retained deciduous incisors==

==Retained deciduous incisors==