Pregled bibliografske jedinice broj: 1263106
Treatment modality for a dysfunctional lateral crossbite associated with an anterior crossbite and skeletal class III in growing subject
Treatment modality for a dysfunctional lateral crossbite associated with an anterior crossbite and skeletal class III in growing subject // International Spring Meeting
Rim, Italija, 2023. (poster, međunarodna recenzija, pp prezentacija, stručni)
CROSBI ID: 1263106 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Treatment modality for a dysfunctional lateral
crossbite associated with an anterior crossbite
and skeletal class III in growing subject
Autori
Katić, Višnja
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, pp prezentacija, stručni
Skup
International Spring Meeting
Mjesto i datum
Rim, Italija, 16.03.2023. - 17.03.2023
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
dysfunction ; unilateral cross-bite ; orthodontics ; anterior cross-bite
Sažetak
Aim: To present treatment modality for a dysfunctional lateral crossbite associated with anterior crossbite in growing subject. Materials and Methods: A girl at the age of 7.5 years with the mixed dentition had a dysfunctional anterior and left lateral crossbite with lower midline shift for 2mm to the left ; also, a traumatic occlusion on lower right central incisor. Angle dental class I. Oral hygiene was poor, gingival phenotype thick on the upper and thin on the lower frontal teeth. Face was slightly asymmetric with chin towards left, her profile was concave. More of the lower than upper teeth were visible during smiling. Lateral cephalogram revealed: bimaxillary protrusion (much more pronounced mandible) in skeletal class III (Wits appraisal -6.3mm), neutral growth pattern, retroinclined lower incisors and both lips retruded in relation to the Rickets E-line. The Condylar axis : mandibular plane angle was 131.5°, which was in favour of the early treatment for class III. The cervical vertebral maturation method was used for assessing the skeletal maturity, it was assessed as the cervical stage (CS) 2, indicating prepubertal stage. Results and Conclusions: Treatment plan had goals to resolve dysfunctional anterior and lateral crossbite, discontinue traumatic occlusion on the tooth 41 and improve skeletal class III by stimulating the forward and downward growth of the maxilla. To resolve transversal discrepancy, the rapid maxillary expansion was applied. The acrylic bite blocks covering all upper lateral teeth were connected by the hyrax screw arms, vestibular hooks for protraction face mask were added at the level of the first deciduous molars. The hyrax screw was activated two times per day for two weeks, elastic traction was applied for 10 hours every day, for one year in total, after that time the acrylic hyrax was removed and elastics discontinued. Final occlusion resolved dysfunctional crossbite and traumatic occlusion on the 42. Angle dental class changed to class II. Lateral cephalogram revealed reduced Wits appraisal (-4.1mm), unchanged neutral growth pattern, retruded and retroinclined lower incisors, and both lips retruded in relation to the Rickets E-line, CS 3 circumpubertal stage. The superimposition on the sella-nasion line showed that the growth was predominantly vertical. Smile was improved with the upper teeth visibility, there was no visible deviation of the chin, profile became straight.
Izvorni jezik
Engleski
Znanstvena područja
Dentalna medicina
POVEZANOST RADA
Projekti:
--UNIRI-biomed-18-71 - Kraniodentofacijalna biometrija - 2D i 3D tehnologija u identifikaciji, dijagnostici i terapiji (Katić, Višnja; Katić, Višnja) ( CroRIS)
Ustanove:
Klinički bolnički centar Rijeka,
Fakultet dentalne medicine, Rijeka
Profili:
Višnja Katić
(autor)