Evaluation of the correlation between impacted canine and malocclusions

Abstract

Introduction: Tooth impaction is defined as the absence of a tooth on the arch, after its normal eruption age. The main reason canines are impacted is the lack of space required for the tooth to erupt.Aim of study: The main objective of this study is to determine the types of malocclusions associated with canine impaction (Lindauer classification). A secondary objective is to establish the correlation between these parameters and identification of subjects with high risk of canine impaction based on pre-existing malocclusion.Material and methods: This study was performed on a sample of 20 patients, 9 men and 11 women. The dental casts were subject to Angle classification and various measurements such as arch perimeter, Pont’s index, sum of the mesiodistal width of the incisor and arch length were performed. The Lindauer sectorial classification was determined based on the patients’ panoramic radiography.Results: According to the data collected, the Class II /2 malocclusion is more frequent, and it is associated with the impacted canine (approximately 50%). According to the Lindauer classification higher frequency of the impacted canines was found in Sector IV.Conclusion: The diagnosis for impacted canines is often associated with Class II /2 malocclusion, and according to the Sector classification, it is often localised in Sector IV.

Investigation of the Relationship of Impacted Maxillary Canines with Orthodontic Malocclusion: A Retrospective Study

“…In a study conducted by Pop et al [7] to determine the types of malocclusion associated with impacted canines, they found that impacted canines were most commonly associated with Class II malocclusion and sector 4 according to Lindauer's sectoral classification, which is consistent with this present study. It is thought that the reason for this may be that as the relationship of the canine tooth with the lateral tooth increases, the possibility of becoming impacted increases.…”

“…Panoramic and lateral cephalometric radiographs are usually taken from patients following orthodontic treatment and minimize radiation exposure. These radiographs provided sufficient data for the present study [ 7 ], and panoramic radiographs were used to evaluate impacted canines’ angular and linear position.…”

“…This can be confirmed through clinical examination and radiography [ 3 ]. A tooth is considered as impacted if it has not erupted after its root has fully developed, or if the tooth in the opposing arch has erupted for more than six months and has a fully developed root [ 7 ].…”

“…In maxillary canine impaction, which is a malocclusion that is difficult to treat, the horizontal position, vertical height, and bucco-palatal position of the impacted canine affect the prognosis [ 11 ]. Pop et al [ 7 ] reported that impacted canines were most commonly associated with Class II Division 2 malocclusion. In addition, a distance between the impacted canine and the occlusal plane of more than 14 mm, increased impacted canine angle, and bilateral impaction increase the duration of treatment [ 12 , 13 , 14 ].…”

Impacted Canines Classification Systems Among Orthodontic Patients

“…51 However, to manage the principal use of CBCT in dental subjects and specialties, it is important to analyze tooth location, length, direction, related structures, and dental arch measurements. 82 The radiation risk when utilizing CT is extremely questionable. As a result, the main advantage of CBCT versus a CT scan is the lower radiation exposure.…”