BACKGROUND: The prevalence of impacted maxillary canine is reported to be between 1% and 3%. The lack of monitoring and the delay in the treatment of the impacted canine can cause different complications such as: displacement of adjacent teeth, loss of vitality of neighbouring teeth, shortening of the dental arch, follicular cysts, canine ankylosis, recurrent infections, recurrent pain, internal resorption of the canine and the adjacent teeth, external resorption of the canine and the adjacent teeth, combination of these factors. An appropriate diagnosis, accurate predictive analysis and early intervention are likely to prevent such undesirable effects. The objective is to evaluate, by means of a retrospective observational study, the possibility of carrying out a predictive analysis of root resorption adjacent to the impacted canines by means of orthopantomographs, so as to limit the prescription of additional 3D radiography. MATERIAL AND METHODS: 120 subjects with unilateral or bilateral maxillary impacted canine were examined and 50 patients with 69 impacted maxillary canine (22 male, 28 female; mean age: 11.7 years) satisfied the inclusion criteria of the study. These patients were subjected to a basic clinical and radiographic investigation (orthopantomographs and computerized tomography). All panoramic films were viewed under standardized conditions for the evaluation of two main variables: maxillary canine angulations (a, b, g angles) and the overlapping between the impacted teeth and the lateral incisor (Analysis of Lindauer). Binary logistic regression was used to estimate the likelihood of resorbed lateral incisors depending on sector location and angle measurements. RESULTS: Results indicated that b angle has the greatest influence on the prediction of root resorption (predictive value of b angle = 76%). If β angle <18° and Lindauer = I, the probability of resorption is 0.06. CONCLUSIONS: Evaluation of b angle and superimposition lateral incisor/impacted canine analysed on orthopantomographs could be one of the evaluation criteria for prescribing second level examination (CT and CTCB) and for detecting root resorption of impacted maxillary canine adjacent teeth.

Impacted maxillary canines and root resorption of adjacent teeth: a retrospective observational study / Guarnieri, Rosanna; Cavallini, Costanza; Vernucci, ROBERTO ANTONIO; Vichi, Maurizio; Leonardi, Rosalia; Barbato, Ersilia. - In: MEDICINA ORAL, PATOLOGÍA ORAL Y CIRUGÍA BUCAL. - ISSN 1698-6946. - ELETTRONICO. - 21:6(2016), pp. e743-e750. [10.4317/medoral.21337]

Impacted maxillary canines and root resorption of adjacent teeth: a retrospective observational study

GUARNIERI, ROSANNA
Primo
;
CAVALLINI, COSTANZA
Secondo
;
VERNUCCI, ROBERTO ANTONIO;VICHI, Maurizio;BARBATO, Ersilia
Ultimo
2016

Abstract

BACKGROUND: The prevalence of impacted maxillary canine is reported to be between 1% and 3%. The lack of monitoring and the delay in the treatment of the impacted canine can cause different complications such as: displacement of adjacent teeth, loss of vitality of neighbouring teeth, shortening of the dental arch, follicular cysts, canine ankylosis, recurrent infections, recurrent pain, internal resorption of the canine and the adjacent teeth, external resorption of the canine and the adjacent teeth, combination of these factors. An appropriate diagnosis, accurate predictive analysis and early intervention are likely to prevent such undesirable effects. The objective is to evaluate, by means of a retrospective observational study, the possibility of carrying out a predictive analysis of root resorption adjacent to the impacted canines by means of orthopantomographs, so as to limit the prescription of additional 3D radiography. MATERIAL AND METHODS: 120 subjects with unilateral or bilateral maxillary impacted canine were examined and 50 patients with 69 impacted maxillary canine (22 male, 28 female; mean age: 11.7 years) satisfied the inclusion criteria of the study. These patients were subjected to a basic clinical and radiographic investigation (orthopantomographs and computerized tomography). All panoramic films were viewed under standardized conditions for the evaluation of two main variables: maxillary canine angulations (a, b, g angles) and the overlapping between the impacted teeth and the lateral incisor (Analysis of Lindauer). Binary logistic regression was used to estimate the likelihood of resorbed lateral incisors depending on sector location and angle measurements. RESULTS: Results indicated that b angle has the greatest influence on the prediction of root resorption (predictive value of b angle = 76%). If β angle <18° and Lindauer = I, the probability of resorption is 0.06. CONCLUSIONS: Evaluation of b angle and superimposition lateral incisor/impacted canine analysed on orthopantomographs could be one of the evaluation criteria for prescribing second level examination (CT and CTCB) and for detecting root resorption of impacted maxillary canine adjacent teeth.
2016
angulation; impacted canine; panoramic radiography; prediction; root resorption; surgery; otorhinolaryngology2734 pathology and forensic medicine; dentistry (all)
01 Pubblicazione su rivista::01a Articolo in rivista
Impacted maxillary canines and root resorption of adjacent teeth: a retrospective observational study / Guarnieri, Rosanna; Cavallini, Costanza; Vernucci, ROBERTO ANTONIO; Vichi, Maurizio; Leonardi, Rosalia; Barbato, Ersilia. - In: MEDICINA ORAL, PATOLOGÍA ORAL Y CIRUGÍA BUCAL. - ISSN 1698-6946. - ELETTRONICO. - 21:6(2016), pp. e743-e750. [10.4317/medoral.21337]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/930553
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