Effect of facemask protraction on the development of impacted maxillary canines – a retrospective study.

  • Graziano Montaruli Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy.
  • Michele Tepedino Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, L’Aquila, Italy.
  • Maciej Iancu Potrubacz Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, L’Aquila, Italy.
  • Letizia Perillo Multidisciplinary Department of Medical-Surgical and Dental Specialties, Second University of Naples, Naples, Italy.
  • Claudio Chimenti Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, L’Aquila, Italy.
  • Domenico Ciavarella Department of Clinical and Experimental Medicine, University of Foggia, Foggia, Italy.


Objective: The aim of the present study was to evaluate if maxillary protraction with facemask increases the risk of maxillary canine impaction. Materials and method: The records of 76 skeletal Class III subjects with a cervical vertebral maturation stage between CS1 and CS3 and a displaced maxillary canine were retrospectively collected. Intraoral photographs, orthopantomography and lateral cephalograms were collected, and patients were divided into three groups depending on the type of treatment received – a Rapid Palatal Expander (RPE), a RPE in conjunction with a facemask (RPE-FM), or a Class III functional appliance (FA). The patient’s records were used to determine if the maxillary canines were correctly erupted after that phase of treatment. A binary logistic regression was used to evaluate the effect of treatment modality and skeletal maturation stage on the chance of maxillary canine impaction. Results: No effect of the three different treatment modalities and of the skeletal maturation stage on the risk of canine impaction was observed. Conclusions: The protraction facemask can be used in growing skeletal Class III subjects without increasing the risks of maxillary canine displacement.


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How to Cite
MONTARULI, Graziano et al. Effect of facemask protraction on the development of impacted maxillary canines – a retrospective study.. Journal of Oral Research, [S.l.], v. 8, n. 5, p. 350-355, nov. 2019. ISSN 0719-2479. Available at: <https://joralres.com/index.php/JOR/article/view/joralres.2019.054>. Date accessed: 24 july 2021. doi: https://doi.org/10.17126/joralres.2019.054.