This study aims to evaluate and compare the inclination of the lower and upper permanent first molars and the transversal width of the lower and upper jaws in individuals of different age groups to evaluate whether the existing anomaly at different ages in individuals with a bilateral posterior crossbite. For this reason, first molar tooth inclination and lower and upper jaw transversal width will be evaluated in adolescent and post-adolescent individuals with a bilateral posterior crossbite.
Who can participate
Age range12 Years – 18 Years
SexALL
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Inclusion criteria
✓. Absence of a syndrome or disease affecting the craniofacial and general systemic condition
✓. Patients who have applied for treatment due to the need for orthodontic treatment
✓. Adequate radiographic and three-dimensional dental model records before treatment
✓. Bilateral posterior crossbite
✓. Absence of anterior crossbite
✓. Absence of loss of lower and upper first permanent molars and eruption of all 4 permanent molars
✓. Absence of a syndrome or disease affecting the craniofacial and general systemic condition
✓. Patients who have applied for treatment due to the need for orthodontic treatment
Exclusion criteria
✕. Presence of a syndrome and disease affecting the craniofacial and general systemic condition
✕
What they're measuring
1
Mandibular and maxillary first molar positions
Timeframe: At the beginning of the examination, it will be evaluated as an average of 10 minutes for each patient's lower and upper jaw.
2
Dimensions of the upper dental arch in the transverse direction
Timeframe: At the beginning of the examination, it will be evaluated as an average of 15 minutes for each patient's maxilla.
3
Dimensions of the lower dental arch in the transverse direction
Timeframe: At the beginning of the examination, it will be evaluated as an average of 15 minutes for each patient's mandible.
4
Evaluation of the transverse dimensions of the lower and upper jaws between different age groups
Timeframe: At the beginning of the examination, it will be evaluated as an average of 25 minutes for each patient's mandible.