- Crack – Break without complete separation of parts.
- Infraction – A fracture without displacement.
- Size and extension changes overtime (usually)
- Generally traumatic
- Outer layer / only in enamel (external layer of the tooth)
- Most often seen in anterior teeth
- Generally all patients over 40 / have craze lines
- Fairly innoculous
- No pain
- May be an aesthetic issue
- Through enamel into dentine
- Extends through the outer surface of the tooth
- Transillumination -> I very bright light can be flashed on the side of the tooth to look for evidence of a crack.
- Usually in the front to back
- Fracture is in the crown only
- More centrally located than fractured cusp
- Far more likely to cause tooth complications
- Often hard to pin point or hard to find the offending tooth
- Pain on chewing (most common)
- Cold hypersensitiviety
- Sweet sensititivty (least common)
- – The tooth is stabilised
- – Symptoms are re-assessed in 2 weeks
- – If symptoms settle considerations for full coverage or a crown long term
- – A root canal may be necessary long term
If the tooth does not settle
– Consideration of either saving the tooth or extraction
– If keen to save the tooth is stabilised
– Extension of a cracked tooth– Front to back– Split tooth is the evolutionary end-pt of a cracked tooth– Prognosis dependent on apical extent of fracture– The tooth may or may not be restorable
– Originates in the root– Can involve oneside or both– Fractures run in a buccal/palatal direction
– Iniates within the root– Usually minimal signs and symptoms-> may be diffuse bone loss– Can be very difficult to diangosis– Can mimic periodontal disease or failed RCT
– Extraction or removal
If you wish for more information on Cracked Teeth or have any concerns please do not hesitate to contact Skygate Dental today on (07) 3114 1199 or 0406 579 197.