ANATOMY
PAEDIATRIC ANATOMY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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After
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Never
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Before
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None of the above
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Detailed explanation-1: -It takes 2 to 5 years for the posterior teeth to reach the alveolar crest following completion of the crowns and from 12 to 20 months to reach occlusion after reaching the alveolar margin. The roots usually are completed a few months after occlusion is attained.
Detailed explanation-2: -Passive eruption is known as movement of the gingiva apically or away from the crown of the tooth to the level of Cementoenamel junction (CEJ) after the tooth has erupted completely. Problems in gingival tissue migrating apically can give rise to what is known as altered or delayed passive eruption.
Detailed explanation-3: -After a tooth erupts, further root formation occurs. On average, it takes 1.5-3.5 years for the root to completely form after tooth eruption.