The aim of the study is to compare an Infra-zygomatic Mini implant supported appliance with headgear in distalization and intrusion of maxillary dentition for treatment of growing patients with class II malocclusion (maxillary excess)

In this randomized trial, 2 groups will be included. The first group will receive an Infra-zygomatic Mini implant supported appliance. In the second group, the patient will receive a removable high pull headgear. the follow-up period will be 8 months or till class I canine or incisors relation is obtained. the assessment will be through a lateral cephalogram

Inclusion Criteria:

1. Growing patients ( cervical vertebrae maturation stage cs2-cs3 )
2. Maxillary excess
3. Minimum overjet 4 mm
4. class II canines or incisors
5. Increased incisal show at rest and on smiling
6. Normal and increased vertical growth pattern
7. No previous orthodontic treatment
8. No congenitally messing teeth except third molars

Exclusion Criteria:

1. Inadequate incisal show
2. Class II with deficient mandible and normal maxilla
3. Patients with any syndrome
4. Patients with horizontal growth pattern