Single most likely diagnosis
- Impaction: This is the most likely diagnosis when there is no gap, as it refers to a condition where a tooth is unable to erupt into the dental arch due to obstruction, resulting in no space or gap between the teeth.
Other Likely diagnoses
- Crowding: This condition occurs when there is not enough space in the jaw for all the teeth to fit normally, leading to overlapping or twisted teeth and potentially no visible gaps.
- Supernumerary teeth: The presence of extra teeth can cause overcrowding and reduce or eliminate gaps between teeth.
Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Oral cancer: Although rare, oral cancer can cause changes in the mouth, including the disappearance of gaps between teeth due to tumor growth. Early detection is crucial.
- Periodontal disease: Advanced periodontal disease can lead to tooth loss, but in its early stages, it might cause changes in the alignment or gaps between teeth due to bone loss.
Rare diagnoses
- Microdontia: A condition where teeth are smaller than normal, potentially reducing gaps between them.
- Dental fusion: A rare condition where two teeth fuse together, eliminating the gap between them.
- Gemination: An attempt by a single tooth bud to divide, resulting in a tooth that is larger than normal or has an unusual shape, potentially affecting gaps between teeth.