Dilaceration
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Dilaceration is a developmental disturbance in shape of teeth. It refers to an angulation, or a sharp bend or curve, in the root or crown of a formed tooth.
Description
The condition is thought to be due to trauma or possibly a delay in tooth eruption relative to bone remodeling gradients during the period in which tooth is forming.[1] The result is that the position of the calcified portion of the tooth is changed and the remainder of the tooth is formed at an angle.
The curve or bend may occur anywhere along the length of the tooth, sometimes at the cervical portion, at other times midway along the root or even just at the apex of the root, depending upon the amount of root formed when the injury occurred.
Such an injury to a permanent tooth, resulting in dilaceration, often follows traumatic injury to the deciduous predecessor in which that tooth is driven apically into the jaw.
References
- ^ [1] Standerwick RG. A possible etiology for the dilaceration and flexion of permanent tooth roots relative to bone remodeling gradients in alveolar bone. Dent Hypotheses [serial online] 2014 [cited 2014 Mar 3];5:7-10. Available from: http://www.dentalhypotheses.com/text.asp?2014/5/1/7/128105
See also
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