Vienpusēji impaktētu augšžokļa kanīnu ietekme uz augšžokļa transversālo dimensiju
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Date
2021
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Rīgas Stradiņa universitāte
Rīga Stradiņš University
Rīga Stradiņš University
Abstract
Vienpusēji impaktētu augšžokļa kanīnu ietekme uz augšžokļa transversālo dimensiju
Aktualitāte: daudzi autori ir mēģinājuši atklāt sakarību starp impaktētiem augšžokļa kanīniem un augšžokļa transversālo dimensiju, taču pētījumu rezultāti nav viennozīmīgi. Daži autori neatrada nozīmīgas transversālas atšķirības impaktētu kanīnu un kontroles grupās, bet citi autori norāda, ka impakcija varētu būt saistīta ar samazinātu transversālo dimensiju. Savukārt, atsevišķos pētījumos transversālie mērījumi impakciju grupā bija pat lielāki.
Darba mērķis: ar konusa stara datortomogrāfijas (KSDT) palīdzību noteikt, vai pastāv augšžokļa transversālās dimensijas atšķirība starp impaktētā kanīna pusi un pretējo pusi bez kanīna impakcijas.
Pētījumā izmantotās metodes: pētījumā tika izmantoti KSDT uzņēmumi 79 pacientiem ar vienpusēji impaktētu augšžokļa kanīnu (58 palatināli, 21 bukāli). Izmantojot 3D Slicer programmu, tika veikti augšžokļa transversālās dimensijas mērījumi dentāli, alveolāri un bazāli gan pie 1.premolāra, gan 1.molāra abās augšžokļa pusēs. Atšķirības starp impaktētā kanīna pusi un pretējo pusi bez kanīna impakcijas tika analizētas ar divu neatkarīgu izlašu t-testu un Manna-Vitnija U-testu.
Rezultāti: netika atrastas nozīmīgas augšžokļa transversālās dimensijas atšķirības starp impaktētā kanīna pusi un pretējo pusi bez kanīna impakcijas nevienā no veiktajiem mērījumiem gan palatināli, gan bukāli impaktēto kanīnu grupā.
Secinājumi: starp impaktētā kanīna pusi un pretējo pusi bez kanīna impakcijas nepastāv augšžokļa transversālās dimensijas atšķirība. Tas norāda uz to, ka augšžokļa transversālo dimensiju nevarētu uzskatīt par galveno faktoru kanīnu impakcijas ģenēzē.
Influence of unilaterally impacted maxillary canines on maxillary transverse dimension Background: many authors have tried to reveal a relationship between impacted maxillary canines and maxillary transverse dimension, but the results of the research are ambiguous. Some authors did not find significant transverse differences between the impacted canine and control groups, while other authors suggest that impaction could be associated with a reduced transverse dimension. In contrast, in some studies, the transverse measurements in impaction group were even higher. The aim of the study: to determine whether there is a difference in the maxillary transverse dimension between the impacted canine side and the opposite side without canine impaction with the help of cone-beam computed tomography. Materials and methods: 79 cone-beam computed tomography images of patients with unilaterally impacted maxillary canine (58 palatally, 21 buccally) were analyzed. Using the 3D Slicer software, measurements of the maxillary transverse dimension were performed at dental, alveolar and basal level both at the 1st premolar and at the 1st molar on both sides of the maxilla. Differences between the impacted canine side and the non-impacted canine side were analyzed by two independent sample t-tests and the Mann-Whitney U-test. Results: no significant differences in the maxillary transverse dimension were found between the impacted canine side and the opposite side without canine impaction in any of the measurements in both palatally and buccally impacted canine group. Conclusions: there is no difference in the maxillary transverse dimension between the impacted canine side and the opposite side without canine impaction. This suggests that the maxillary transverse dimension could not be considered a major factor in the genesis of canine impaction.
Influence of unilaterally impacted maxillary canines on maxillary transverse dimension Background: many authors have tried to reveal a relationship between impacted maxillary canines and maxillary transverse dimension, but the results of the research are ambiguous. Some authors did not find significant transverse differences between the impacted canine and control groups, while other authors suggest that impaction could be associated with a reduced transverse dimension. In contrast, in some studies, the transverse measurements in impaction group were even higher. The aim of the study: to determine whether there is a difference in the maxillary transverse dimension between the impacted canine side and the opposite side without canine impaction with the help of cone-beam computed tomography. Materials and methods: 79 cone-beam computed tomography images of patients with unilaterally impacted maxillary canine (58 palatally, 21 buccally) were analyzed. Using the 3D Slicer software, measurements of the maxillary transverse dimension were performed at dental, alveolar and basal level both at the 1st premolar and at the 1st molar on both sides of the maxilla. Differences between the impacted canine side and the non-impacted canine side were analyzed by two independent sample t-tests and the Mann-Whitney U-test. Results: no significant differences in the maxillary transverse dimension were found between the impacted canine side and the opposite side without canine impaction in any of the measurements in both palatally and buccally impacted canine group. Conclusions: there is no difference in the maxillary transverse dimension between the impacted canine side and the opposite side without canine impaction. This suggests that the maxillary transverse dimension could not be considered a major factor in the genesis of canine impaction.
Description
Zobārstniecība
Dentistry
Veselības aprūpe
Health Care
Dentistry
Veselības aprūpe
Health Care
Keywords
Impaktēts augšžokļa kanīns, augšžokļa transversālā dimensija, konusa stara datortomogrāfija, Impacted maxillary canine, maxillary transverse dimension, cone beam computed tomography