Sometimes teeth come
out in unusual shapes. Thank you to Shelly for sending in these awesome pictures. What do
we have here? A double tooth!
Double teeth show up
in two ways, twin teeth or fused teeth. In both cases, you see an unusually
wide tooth in the front of the mouth. In twinning (also called
"gemination"), two crowns grow from one root. But in fusion, two,
separate teeth connect from the root up.
How can I tell the
difference?
Count the number of
teeth in the mouth. If the tooth is fused, there will be one less tooth in the
mouth—the two roots only come up to one big crown. Geminated teeth will show
the normal amount of teeth present.
Children have 20
teeth by age 2.
Adolescents have 28 teeth by age 12.
Adolescents have 28 teeth by age 12.
(Ages are
approximate. Earlier/later eruption of teeth is perfectly normal.)
Do these teeth cause
problems?
The only real
concern is appearance. If the tooth is fused, there will be one less front
tooth in the mouth come adulthood. The missing tooth can be replaced, but that
may require orthodontics, implant surgery, or a fixed bridge (crowned adjacent
teeth connected by a fake tooth in the middle).
To visually improve
the geminated or fused tooth, the dentist can re-shape or crown it to reduce
the size. Otherwise, these teeth can be cleaned, filled, and flossed like all the rest.
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