Qatar DHP Orthodontics Practice Questions - Qatar DHP Orthodontics Specialist Qualifying Exam

The centre of resistance of a single-rooted tooth with a normal periodontium is located approximately where?

At the incisal edge At the apex of the root About one-third to 40% of the root length apical to the alveolar crest Outside the tooth in the surrounding bone

Correct Answer:

About one-third to 40% of the root length apical to the alveolar crest

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