Abstract
BackgroundLittle information is available on the treatment of open bite with temporomandibular joint disorder by intrusion of molars using miniscrews.Case presentationThis case report describes a 42-year-old Japanese woman with a skeletal class II severe anterior open bite and temporomandibular joint disorder. The pretreatment magnetic resonance imaging of both temporomandibular joints revealed osteoarthritis and anterior disc displacement without reduction in both temporomandibular joints. A stabilization splint was used before orthodontic treatment and bilateral upper and lower premolars were extracted. Miniscrews were inserted into the palatal region to intrude the maxillary molars and avoid loss of anchorage. The maxillary left first molar was also extracted to improve the molar relationship and the dental midline. Normal overjet and overbite with Angle class I molar relationship were achieved, and the upper and lower midlines coincided. Our patient’s teeth continued to be stable and her temporomandibular joint was asymptomatic after a retention period of 2 years.ConclusionsIntrusion of molars by miniscrews is available for skeletal class II severe open bite.
Highlights
Little information is available on the treatment of open bite with temporomandibular joint disorder by intrusion of molars using miniscrews.Case presentation: This case report describes a 42-year-old Japanese woman with a skeletal class II severe anterior open bite and temporomandibular joint disorder
We describe the outcome of severe skeletal class II open bite treated using miniscrews along with extraction of the four premolars and the left maxillary first molar
Our patient was diagnosed as having disc displacement without reduction (DDwoR) via Magnetic resonance imaging (MRI), and a stabilization occlusal splint was used before orthodontic treatment to reduce the temporomandibular joint (TMJ) pain associated with masticatory movement
Summary
Temporomandibular joint disorder (TMD) is a comprehensive term and is characterized by the clinical presentation of: pain in the masticatory musculature and in the temporomandibular joint (TMJ), limited range of mandibular movement, and clicking or crepitus during jaw movement [1]. Pretreatment evaluation Our patient, a Japanese woman aged 42 years and 6 months, visited our dental hospital with a chief complaint of impaired masticatory function due to anterior open bite. She experienced pain in the TMJ while chewing and mouth opening. Her open bite had worsened gradually and she had tongue thrust She was previously recommended orthodontic treatment with orthognathic surgery by an orthodontist, but she did not want to undergo the surgery. Because our patient refused surgical treatment, it was decided to correct the anterior open bite and achieve an ideal occlusion with class I molar relationship via orthodontic treatment alone (without orthognathic surgery).
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
