ANKYLOSIS OF TMJ (HYPOMOBILITY)

Dr.MehnazLeave a comment
Image Source: @BMC Pediatrics

🔹 Etiology:

➡️ Proposed by Straith & Lewis:-

  1. Abnormal intrauterine development
  2. Birth injury (by forceps)
  3. Trauma to chin
  4. Mal-union of condylar fractures
  5. Congenital syphylis
  6. Primary inflammation of joint
  7. Inflammation secondary to blood stream infection
  8. Metastatic malignancy
  9. Fractures of the malar–zygomatic compound
  10. Loss of tissues with scarring
  11. Radiation therapy

🔹 Clinical Features:

  • Age: <10 years
  • M=F
  • Signs & Symptoms:
  1. Difficulty in opening mouth to any appreciable extent
  2. If complete fusion – absolute limitation of motion
  3. Facial deformity

🔹 Radiographic Features: – Abnormal or irregular shape of the head of the condyle & a radiopacity indicative of dense bone filling the joint space.

🔹 Treatment:

  • Surgical
  • Osteotomy: Removal of section of bone below the condyle
  • Fibrous Ankylosis: Functional methods

Dr. Mehnaz Memon🖊

References: Shafers Textbook Of Oral Pathology 7Ed

Ideal Photographs ( extra oral)

Dr. Jawad ShahLeave a comment

Teeth in occlusion

Lips relaxed and in contact

Natural head position with eyes looking forward

Entire head and neck displayed

Left eyelash slightly visible

Approximate center of frame is 1.0 cm anterior to tragus

White, or light, background

Patient simply turns to face the camera

Eyes are open and looking into camera

Ears exposed

No distracting eyewear or jewelry

Inter-pupillary line horizontal to the frame

Approximate center of frame is the tip of the nos


Use the same format as the non-smiling frontal photograph adding a natural smile (social smile)

(ABO Photos)

P.S: It’s very important to improve photography skills. Final year students and graduated students must learn it now as it’s not only important for data recording but also required in marketing of your practice. Next time i will be sharing intra oral photographs. But one thing should be kept in mind, it is only learnt with practicing and interaction. So if you have any query you are most welcome. Thanks

Dr. Jawad Shah
PGR ortho