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Lips
Published in Ali Pirayesh, Dario Bertossi, Izolda Heydenrych, Aesthetic Facial Anatomy Essentials for Injections, 2020
Ali Pirayesh, Raul Banegas, Per Heden, Khalid Alawadi, Jennifer Gaona, Alwyn Ray D’Souza
The overbite refers to how much the upper incisor edge covers the lower incisors. The higher the overbite value, the more the lower teeth are covered by the upper teeth, creating a shorter lower third height and redundancy of lip contact (Figure 7.17).
Recognition and Management of the Difficult Airway
Published in John C Watkinson, Raymond W Clarke, Louise Jayne Clark, Adam J Donne, R James A England, Hisham M Mehanna, Gerald William McGarry, Sean Carrie, Basic Sciences Endocrine Surgery Rhinology, 2018
Valerie Cunningham, Alistair McNarry
Patients with a prominent overbite may be considered more likely to be an intubation challenge, as are patients who are unable to bring their mandibular incisors anterior to their maxillary incisors. The relationship between the maxillary and mandibular incisors during normal jaw closure and voluntary protrusion of the mandible have been graded in an attempt to predict significance to difficulty with intubation.
Catalogue of Etruscan and Roman-era dental appliances
Published in Marshall Joseph Becker, Jean MacIntosh Turfa, The Etruscans and the History of Dentistry, 2017
Marshall Joseph Becker, Jean MacIntosh Turfa
No teeth were found in the sockets made for either left incisor; the tooth now found in the socket made to fit the I2 is actually a maxillary left canine. The tooth wear pattern on this I2 suggests that this person had an overbite, down in a left distal direction, indicating that this is a maxillary tooth. The extent of wear is considerable, suggesting that it comes from a mature individual who may have lost teeth or at least have had loose teeth. Some tartar remains on the tooth.
Early orthodontic treatment in a Finnish public health centre: a retrospective cross-sectional study
Published in Acta Odontologica Scandinavica, 2023
Annika Arpalahti, Anni Saarnio-Syrjäläinen, Sirkku Laaksonen, Heidi Arponen
Mean value and standard deviation or range were calculated for continuous variables. Prevalence percentage was determined for Angle class molar relationship and different appliances used. The number of children examined by different orthodontists and postgraduate students was recorded, and the percentages of children deemed eligible for treatment were calculated. Mean differences in overjet and overbite between children in orthodontic treatment and those with no current treatment need were compared with an independent samples t-test. Statistical significance was set at p < .05. Correlation between age and appliance type was evaluated with a point-biserial correlation. Chi-square test was applied to analyse the association between appliance type and primary malocclusion diagnosis as well as between orthodontists’ and postgraduate students’ evaluation of treatment need. No data were missing for the primary outcome variables of age and treatment status. Missing completely at random were individual measurements on occlusal features due to inconsistency in patient documentation.
Malocclusion and oral health-related quality of life among young Danish adults. Is there a difference between subjects who received orthodontic treatment during adolescence and subjects without treatment need? A cross-sectional study
Published in Acta Odontologica Scandinavica, 2022
Arwa Gera, Shadi Gera, Paolo M. Cattaneo, Marie A. Cornelis
The distribution of Class I, II and III molar relationships was not significantly different in the treated and untreated subjects (Table 1, Chi2=0.22, p = .90). Overjet was not significantly different between the treated and untreated subjects, whereas overbite was significantly smaller in the treated subjects (Table 2). Treated subjects had significantly larger inter-canine and inter-premolar distances than untreated subjects. By contrast, inter-molar distances and arch lengths were not significantly different between the treated and untreated subjects. Regarding the transverse relationships, treated and untreated subjects showed a low frequency of crossbite of one or more teeth (4 treated subjects and 8 untreated subjects), one treated subject had one tooth in scissor bite, two untreated cases had edge-to-edge relations and one subject in each group had a combination of edge-to-edge relation and a crossbite of at least one tooth.
Longitudinal analysis of the quality of orthodontic treatment outcome and stability of occlusal traits
Published in Acta Odontologica Scandinavica, 2022
Heidi Arponen, Auli Suominen, Anna-Liisa Svedström-Oristo
The morphological scores changed in five patients: In one patient, the canine sagittal relationship improved over the follow-up period during which time the dentition transitioned from the mixed dentition phase in the age of 13.3 years to a permanent dentition. In contrast, four patients had experienced relapse in comparison with Examination 1. In two patients, overbite had increased; in one, overbite had decreased; and in another, overjet and canine relationship had deteriorated due to sagittal relapse. In addition, a fixed retention wire complication caused one canine to incline lingually. In Examination 1, the youngest of the four patients with a deteriorating morphology was 14.9 years old.