Cephalometric evaluation of deep overbite correction using anterior bite turbos.

Area of Science:

• Orthodontics
• Dental Biomechanics
• Craniofacial Growth

Background:

• Deep overbite (OB) is a common malocclusion requiring effective treatment strategies.
• Anterior bite elevators are used in conjunction with orthodontic appliances to manage OB.
• Understanding the specific tooth movements and skeletal changes is crucial for treatment planning.

Purpose of the Study:

• To evaluate the efficacy of anterior bite elevators combined with a pre-adjusted edgewise appliance for treating deep overbite (OB).
• To analyze the specific effects on incisor position and vertical skeletal dimensions.

Main Methods:

• Utilized Case Western Reserve University (CWRU) cephalometric analysis on 30 treated subjects and a matched untreated control group.
• Measured tipping and bodily movement of upper and lower incisors, and anterior vertical skeletal changes.
• Compared pretreatment (T1) and posttreatment (T2) cephalometric data.

Main Results:

• Significant reduction in overbite (OB) by -5.6 mm (P < .001) in the treated group compared to controls.
• Statistically significant changes observed in bodily upper incisor movement (BUI -0.7 mm), tipping upper incisor (TUI 0.9 mm), tipping lower incisor (TLI -1.4 mm), bodily lower incisor (BLI -1.1 mm), and mandibular skeletal changes (MNSK -1.6 mm).
• Overbite correction was predominantly achieved through lower incisor tipping and intrusion, coupled with an increase in lower vertical facial height.

Conclusions:

• Anterior bite elevators with pre-adjusted edgewise appliances provide an efficient method for correcting deep overbite (OB).
• This treatment approach is particularly beneficial for patients with reduced lower facial height and deep bite.
• Bite turbos represent a viable alternative treatment option for similar cases.