Effect of Bilateral Distalization of Upper First Molars in a Group of Patients After Extraction of Maxillary Second Molars

Effect of Bilateral Distalization of Upper First Molars in a Group of Patients After Extraction of Maxillary Second Molars Using Infra Zygomatic Mini Implants: A Prospective Clinical Trial

There is a scarcity in the current literature regarding such appliance and its effect on distalizing the first maxillary molar in absence of the second molar. Therefore, this study was made to evaluate the effect of bilateral distalization of upper first molars in a group of patients after extraction of maxillary second Molars using infra zygomatic mini implants.

The appliances available for distalization used to be mainly extraoral distalizing appliances which depended entirely on patient cooperation and compliance. Even after the emergence of intra-oral distalizing appliances they had adverse dentoalveolar effect such as anchorage loss and flaring of the upper anterior teeth. Thus, this study was made in order to evaluate the efficiency of our proposed appliance in the treatment of Class II patients while avoiding the adverse effects mentioned above.

Inclusion Criteria:

• Female Patients with cervical vertebra maturation index (CVMI) 5 & 6.
• From quarter unit to 3\4-unit class II molar relationship.
• An overjet of an average 6mm.
• Full Set of permanent dentition except for the maxillary second molar.
• Favorable path of eruption for the maxillary third molar.

Exclusion Criteria:

• Medically compromised Patients.
• Patients under long term medications.
• Patients having sever periodontal disease.
• CVMI 3 or less
• Full unit class II cases