When tooth is impacted or partially impacted ,the bacteria that cause dental caries can be active
Periodontal Disease
Erupted teeth adjacent to impacted teeth are predisposed to periodontal disease.
As it decrease amount of bone on the distal aspect of adjacent tooth, with deep periodontal pocket on the tooth
Root Resorption
Impacted teeth cause sufficient pressure on the root of an adjacent tooth to cause root resorption.
Pain of unexplained origin:
Pain in the area with no obvious reason. Also swelling and maybe associate with infection
Odontogenic cyst and Tumors
The dental follicle may undergo cystic degeneration and become a dentigerios cyst or keratocyst.
A meloblastoma may developed from epithelium within the dental follicle
Fracture of the jaw
impacted third molar occupies space that is usually filled with bone, this weaken the mandible and render the mandible to fracture.
Loss of the space
Due to uneruption of the teeth and mesial moving tendency of other teeth they interact and take of this tooth position
Drifting and malalignment
Unerupetd teeth cause malalighment of neighboring teeth and eventually erupt into ectopic position and also shift Medline if it is maxillary central incisor fail to erupt
Aesthetic
Unerupetd teeth especially central incisor make the smile so unpleasant and affect the person self esteem making their communication to minimum with community
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