📝 “What is a Skeletal Class II Deformity?”

- 9.11.24

Quick Review #227 - #dental #dentist #dentistry #dentalstudent #dentalschool #teeth #cavity #wisdomteeth #extraction #oralsurgery #oralsurgeon #class2 #retrognathic

A Skeletal Class II deformity in dentistry and oral & maxillofacial surgery refers to a discrepancy in the relationship between the upper and lower jaws, where the maxilla (upper jaw) is positioned ahead of the mandible (lower jaw). This leads to a convex facial profile and is commonly associated with retrognathism (a retruded or underdeveloped lower jaw) or prognathism (an overdeveloped upper jaw).

Key characteristics of Skeletal Class II deformity:

1. Facial Profile: Convex facial profile due to a retruded chin or protruded upper jaw.

2. Occlusion: In dental terms, a Class II malocclusion is often seen, where the upper teeth are positioned too far forward compared to the lower teeth.

3. Mandibular Deficiency: Frequently, the underlying issue is a deficiency in the growth of the mandible, though it can also result from overdevelopment of the maxilla.

4. Treatment: Skeletal Class II deformities are often treated using orthognathic surgery (corrective jaw surgery), orthodontic treatment, or a combination of both. Treatment may involve mandibular advancement surgery or maxillary repositioning to achieve balance in the facial structure.

This condition not only affects facial aesthetics but can also impact occlusal function, breathing patterns, and speech.

References:

1. Choi, J.-W., & Lee, J. Y. (2021). Treatment strategy for Class II orthognathic surgery: Orthodontic perspective. In The surgery-first orthognathic approach (pp. 71-100). Springer. https://lnkd.in/eNRafK3d

2. Proffit, W. R., Fields, H. W., & Sarver, D. M. (2018). Contemporary Orthodontics (6th ed.). Elsevier.

3. Reyneke, J. P. (2017). Essentials of Orthognathic Surgery (2nd ed.). Quintessence Publishing.

4. Miloro, M., Ghali, G. E., Larsen, P. E., & Waite, P. (Eds.). (2022). Peterson’s Principles of Oral and Maxillofacial Surgery (4th ed.). Springer.

5. ChatGPT. 2024.

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