While many dentists may accept that restoring the complete dental arch is not always necessary, there still is the need to provide the patient with an affordable and functional treatment, a need satis�ed by the short dental arch.
22.
The helmet headgear is useful to reposition individual teeth or groups of several teeth which show, for example, overretraction and distoversion ( tilting of the tooth axis from its normal orientation ) after closing a natural or postextraction gap in the dental arch.
23.
In children, tongue thrusting is common due to immature oral behavior, narrow dental arch, prolonged upper respiratory tract infections, spaces between the teeth ( diastema ), muscle weakness, malocclusion, abnormal sucking habits, and open mouth posture due to structural abnormalities of genetic origin.
24.
It has been advocated that an ideal approach to treatment of infants with UCLP would be to move the entire maxilla forward using traction to stimulate an adjustment response of the maxillary sutures . Such an advancement would improve alignment of the dental arch.
25.
Clinical determinants include soft tissue analysis where the clinician assesses nasolabial angle, the relationship of the soft tissue portion of the chin to the nose, and the relationship between the upper and lower lips; also used is dental arch relationship assessment such as Angle's classification.
26.
It is not a disease as such, but usually results from habits where the tongue is pressed against the lingual surfaces ( the side facing the tongue ) of the dental arches, or from any cause of macroglossia ( enlarged tongue ), which in itself has many causes such as Down syndrome.
27.
"The changes in facial and dental arch form, which I have described at length in this volume, develop in this age period also, not as a result of faulty nutrition of the individual but as the result of distortions in the architectural design in the very early part of the formative period.
