30 years old lost a tooth to fill or not need to be judged according to the specific circumstances, in addition to wisdom teeth, other teeth lost generally recommended to fill (restoration).
30 years old lost teeth are wisdom teeth, generally do not need to fill, wisdom teeth fall is a relatively normal situation, basically will not affect the individual chewing function, so do not need to supplement.
If the teeth lost are other teeth, due to the relatively young, it is generally recommended to fill in the teeth in time, if not fill in the teeth in time may lead to tilting of the teeth around the missing teeth, which will have an impact on daily life, and may also lead to the masticatory function is affected, so it is recommended to carry out veneer restoration.
Normally, you need to observe your personal dental condition more often, protect your teeth and avoid external impacts.