Electromyography of the temporalis and masseter muscles in children with unilateral cross-bite
Also, considered ineligible were individuals with any kind of syndrome, degenerative diseases, mental deficiencies, malformation, changes of the temporomandibular articulation, open and cross-bite
, myofunctional changes of masticatory muscles and dental implants.
The evaluated malocclusions assessed were posterior cross bite, anterior cross-bite
, anterior open bite, overbite and overjet; angle classification also being evaluated.
Previous researchers as Ricketts differentiate the main characteristics of the respiration obstruction syndrome which are presence of hypertrophied tonsils or adenoids, oral breathing, open-bite tendency, cross-bite
, other features include excessive anterior face height, incompetent lips, and V-shaped maxillary arch.
Either bi- lateral, or unilateral posterior cross-bite
, may be present in LFS.
Overjet was measured as the greatest distance between the incisal edges of the maxillary and mandibular primary incisors in the occlusal plane using a millimeter gauge and recorded as ideal, if a positive overjet was less than or equal to 2 mm; increased, if it was greater than 2 mm; and reversed, if there was anterior cross-bite
and edge-to-edge relationship was also assessed .
The results showed that posterior cross-bite
and adenoids-tonsils enlargement were factors significantly associated with otitis media in children.
Functional and morphological- occlusal aspects in children treat ed for unilateral posterior cross-bite
The clinic started by tackling Carmen's problem with her cross-bite
- meaning her lower teeth were sitting in front of her upper ones - by getting her to wear restraints, like a clear brace, for three months.
When these baby teeth are overretained--when they are not shed on schedule--the result can be harmful cross-bite
positions or impactions, which can become difficult orthodontic therapeutic challenges in a person with special needs.
Dental heath professionals can benefit from the information on anterior open-bite, tongue thrusting, overjet/maxillary protrusion, jaw relationship, posterior cross-bite
, bilateral cross-bite
, unilateral cross-bite
, and primary and permanent root resorption.
14,15) Dentoalveolar characteristics include occlusal disturbances like deep-bite, cross-bite
, attrition, steep inclination of maxillary incisors, ectopic eruption and alteration of tooth morphology.