Diseases of the Masticatory Complex
Lars Granath, William D. McHugh in Systematized Prevention of Oral Disease: Theory and Practice, 2019
Malocclusion has also been discussed in relation to other factors, e.g., long-term development of the occlusion, development of caries and gingivitis/periodontitis, speech, chewing ability. Caries and periodontal conditions seem to be very weakly correlated with malocclusion and then mainly as a result of increased oral hygiene problems.2 In some rare cases of severe malocclusions speech disturbances have been reported.28 A functional malocclusion such as a nonworking side interference implies a risk of a unilateral chewing pattern with an unfavorable long-term development of the occlusion, especially with asymmetric occlusal wear.7 Children with malocclusions have been found to have a lower than average chewing efficiency.35 Even if no systematic studies seem to be reported it is to be assumed that some malocclusions are more related to reduced masticatory capacity than others, e.g., open bite to impaired biting-off ability and decreased comfort in chewing.
Accident and Emergency
Nagi Giumma Barakat in Get Through, 2006
Achondroplasia is not associated with frequent fractures. It is characterized by disproportionately short stature with autosomal dominant inheritance, but there are many new mutations. FGFR3 gene mutation is commonly associated with achondroplasia. It is associated with hydrocephalus, deafness and mal-occlusion of the mouth. There is normal intelligence in the majority of cases. Osteogenesis imperfecta is characterized by frequent fractures, and inheritance is variable according to subtypes. Vermian bones on the skull is one of the criteria and can be seen on X-ray. Blue sclera is another association, but not with all subtypes.
Middle third fractures
John Dudley Langdon, Mohan Francis Patel, Robert Andrew Ord, Peter Brennan in Operative Oral and Maxillofacial Surgery, 2017
The use of arch bars and temporary intermaxillary fixation (IMF) may be very helpful in maintaining the correct reduction during application of the plates. The correct positioning of the fractured maxilla is guided by the anatomic position of the fractured bones, as well as the intercuspation of the dentition. The dental occlusion may not be easily attained if there is a pre-existing abnormal bite and/or missing teeth. Impressions and study models taken pre-operatively with fabrication of an occlusal splint help attain the correct dental bite at operation and may be very helpful.
Condylectomy as a treatment approach to condylar hyperplasia
Published in Orthodontic Waves, 2021
Sarah Abu Arqub, Carlos Villegas, Flavio Uribe
The clinical facial and occlusal features vary according to the abnormal growth vector being vertical or horizontal in nature. The abnormal vertical growth (HH) is characterized by three-dimensional enlargements of the affected side of the mandible. An ipsilateral downgrowth of the condyle with minimal midline or chin deviation but significant sloping of the ipsilateral mandibular occlusal plane [5,25,26]. An ipsilateral open bite is usually seen in the initial stages, but the compensatory downward maxillary growth especially in the prepubertal stages on the affected side to maintain occlusion usually results in a substantial occlusal cant. Because of the overgrowth of the dentoalveolar segment, the inferior alveolar bundle remains in its position close to the lower border of the mandible [25]. The whole face appears rotated. The rapid rate of mandibular growth with the maxilla not being able to catch up might also result in a lateral open bite. Dentally, the lower anterior teeth tip towards the affected side. Posterior teeth on the affected side roll in lingually to compensate and maintain the occlusion [5].
Relationship between aesthetic concern and self-esteem in adolescents with severe malocclusion
Published in Acta Odontologica Scandinavica, 2023
Nashmia Abigail Gómez Recabarren, Diego Patrik Alves Carneiro, Heloísa Cristina Valdrighi, Mário Vedovello-Filho, Carolina Carmo de Menezes, Silvia A. S. Vedovello
The severity of malocclusion measures how much an occlusion deviates from normality and is related to the need for orthodontic treatment [18,19]. The severity of malocclusion and the need for treatment can be assessed using the dental aesthetic index (DAI) [20] or the Orthodontic Treatment Need Index (IOTN) [21]. In this sense, orthodontic indices play a fundamental role in classifying the severity of malocclusion and the need for orthodontic treatment. It is essential to highlight that the self-perception of the need for orthodontic treatment becomes more latent in adolescence, as physical and dentofacial appearance becomes very important at this stage. Additionally, social life becomes more intense during adolescence, and facial appearance influences self-acceptance.
Computerized occlusal analysis of two different removable retainers used during retention phase- A Randomized controlled trial
Published in Orthodontic Waves, 2021
Priya B, Ravindra Kumar Jain, Purva Verma, Akriti Tiwari, Sathya Shankar
Occlusion is defined as the changing relationship of the opposing surfaces of the maxillary and mandibular teeth, which occurs during the movements of the mandible and full terminal contact of the maxillary and mandibular dental arches [1]. It is uniformly understood and agreed that after completion of orthodontic treatment the occlusal contacts of all the teeth should demonstrate simultaneous contact timing and be of equal force intensity, thereby creating a uniform and symmetrical distribution of masticatory force [2]. It has been recommended that the anterior teeth be slightly less loaded than the posterior teeth [3,4].
Related Knowledge Centers
- Alveolar Process
- Deciduous Teeth
- Dentistry
- Mandible
- Maxilla
- Periodontium
- Temporal Bone
- Temporomandibular Joint
- Permanent Teeth
- Gums