Author: Dr Shaun Goh
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Treatment Indications & Timings
Clinical Assessment & Presentations
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Description
Bimaxillary dentoalveolar protrusion
“Bimaxillary dentoalveolar protrusion is where teeth in both jaws are protrusive and is accompanied by lip incompetence or lip strain.”
– Proffit et al. 2015
![](https://i0.wp.com/theorthoguide.org/wp-content/uploads/2021/01/Bimaxillary-protrusion-3-3.jpg?resize=424%2C287&ssl=1)
Treatment Indications & Timings
Clinical Assessment & Presentations
Extra-oral Features
![](https://i0.wp.com/theorthoguide.org/wp-content/uploads/2021/01/Bimaxillary-protrusion-extraoral-clinical-2-v2.jpg?resize=162%2C197&ssl=1)
Protrusive facial and lips pattern
![](https://i0.wp.com/theorthoguide.org/wp-content/uploads/2021/01/Bimaxillary-protrusion-extraoral-clinical-2-lat-ceph-v2.jpg?resize=156%2C205&ssl=1)
Radiographic appearances
Intra-oral Features
![](https://i0.wp.com/theorthoguide.org/wp-content/uploads/2021/01/Bimaxillary-protrusion-3-3.jpg?resize=260%2C175&ssl=1)
Proclined incisors
![](https://i0.wp.com/theorthoguide.org/wp-content/uploads/2021/01/smile-arc-flat-2.jpg?resize=269%2C180&ssl=1)
Flat smile arc
![](https://i0.wp.com/theorthoguide.org/wp-content/uploads/2021/01/Bimaxillary-protrusion-extraoral-clinical-2-lat-ceph-close-up.jpg?resize=151%2C178&ssl=1)
Thin alveolar ridge
Diagnosis & Considerations
Diagnosis
- Diagnostic criteria
- Incisor proclination
- Dental or skeletal patterns
Clinical Considerations
- The aetiology
- High relapse risk
- Correction of bimaxillary protrusion
- Limitations of treatment
Treatment Options
Click a treatment category to explore.
➤ Comprehensive orthodontics
➤ Surgically-assisted orthopaedics
Associated Problems
Open bite | Posterior crossbites | Crowding | Spacing