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Development and eruption of lower third molars was examined in 63 subjects who were treated by extraction of second molars. Changes in mesiodistal and buccolingual lower third molar angulation were measured on 60 degrees cephalograms taken before extraction and 3 or more years later. The final position of lower third molars was assessed on models at the end of the observation period by using a scoring system. All lower third molars erupted in periods ranging from 3 to 10 years after extraction. Ninety-nine percent of the third molars upright mesiodistally, but few became as upright as the second molars they replaced. Model analysis showed that 96% of the lower third molars erupted in good or acceptable positions.
M E Richardson, and
A Richardson
April 1978,
British journal of orthodontics,
M E Richardson, and
A Richardson
March 1989,
Attualita dentale,
M E Richardson, and
A Richardson
June 1953,
Rivista italiana di stomatologia,
M E Richardson, and
A Richardson
January 2021,
Therapeutics and clinical risk management,
M E Richardson, and
A Richardson
December 2001,
Journal of periodontology,
M E Richardson, and
A Richardson
January 1983,
The Journal of pedodontics,
M E Richardson, and
A Richardson
March 1970,
Majallat tibb al-asnan al-Suriyah,
M E Richardson, and
A Richardson
March 2010,
American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics,
M E Richardson, and
A Richardson
January 1985,
The Angle orthodontist,
M E Richardson, and
A Richardson
September 2014,
Oral surgery, oral medicine, oral pathology and oral radiology,
