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Manual reduction of articular disc after traumatic extraction of mandibular third molar: a case report.

Camino Junior R, Manzi MR, Carvalho MF, Luz JG, Pimentel AC, Deboni MC - Dental Press J Orthod (2015)

Bottom Line: Disc displacement without reduction with limited opening is an intracapsular biomechanical disorder involving the condyle-disc complex.With the mouth closed, the disc is in an anterior position in relation to the condylar head and does not reduce with mouth opening.By means of reporting this rare case of anterior disc displacement without reduction with limited opening, after traumatic extraction of a mandibular third molar, in which manual reduction of temporomandibular joint articular disc was performed, it was possible to prove that this technique is effective in the prompt restoration of mandibular movements.

View Article: PubMed Central - PubMed

Affiliation: Universidade de São Paulo, São Paulo, São Paulo, Brazil.

ABSTRACT

Introduction: Disc displacement without reduction with limited opening is an intracapsular biomechanical disorder involving the condyle-disc complex. With the mouth closed, the disc is in an anterior position in relation to the condylar head and does not reduce with mouth opening. This disorder is associated with persistent limited mandibular opening.

Case report: The patient presented severe limitation to fully open the mouth, interfering in her ability to eat. Clinical examination also revealed maximum assisted jaw opening (passive stretch) with less than 40 mm of maximum interincisal opening. Magnetic resonance imaging was the method of choice to identify the temporomandibular disorders.

Conclusion: By means of reporting this rare case of anterior disc displacement without reduction with limited opening, after traumatic extraction of a mandibular third molar, in which manual reduction of temporomandibular joint articular disc was performed, it was possible to prove that this technique is effective in the prompt restoration of mandibular movements.

No MeSH data available.


Related in: MedlinePlus

- A) Detail of MRI sagittal slice of the right TMJ with mouth closed,evincing displacement of the TMJ articular disc. B) MRI sagittal slice of theright TMJ at maximal mouth opening, in which ADDWR is evident.
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f05: - A) Detail of MRI sagittal slice of the right TMJ with mouth closed,evincing displacement of the TMJ articular disc. B) MRI sagittal slice of theright TMJ at maximal mouth opening, in which ADDWR is evident.

Mentions: Clinical examination also revealed 23-mm mouth opening (Fig 3), with normal eccentric movement to the ipsilateral side andrestriction of eccentric movement to the contralateral side (Fig 4). The following hypotheses were considered: permanent trismus,mandibular fracture or ADDWoR on the right side of the TMJ. Patient denied havinghistory of symptoms related to TMD before surgery. Magnetic resonance imaging (MRI)confirmed ADDWoR on the right side of the TMJ (Figs 5A,B).


Manual reduction of articular disc after traumatic extraction of mandibular third molar: a case report.

Camino Junior R, Manzi MR, Carvalho MF, Luz JG, Pimentel AC, Deboni MC - Dental Press J Orthod (2015)

- A) Detail of MRI sagittal slice of the right TMJ with mouth closed,evincing displacement of the TMJ articular disc. B) MRI sagittal slice of theright TMJ at maximal mouth opening, in which ADDWR is evident.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4644926&req=5

f05: - A) Detail of MRI sagittal slice of the right TMJ with mouth closed,evincing displacement of the TMJ articular disc. B) MRI sagittal slice of theright TMJ at maximal mouth opening, in which ADDWR is evident.
Mentions: Clinical examination also revealed 23-mm mouth opening (Fig 3), with normal eccentric movement to the ipsilateral side andrestriction of eccentric movement to the contralateral side (Fig 4). The following hypotheses were considered: permanent trismus,mandibular fracture or ADDWoR on the right side of the TMJ. Patient denied havinghistory of symptoms related to TMD before surgery. Magnetic resonance imaging (MRI)confirmed ADDWoR on the right side of the TMJ (Figs 5A,B).

Bottom Line: Disc displacement without reduction with limited opening is an intracapsular biomechanical disorder involving the condyle-disc complex.With the mouth closed, the disc is in an anterior position in relation to the condylar head and does not reduce with mouth opening.By means of reporting this rare case of anterior disc displacement without reduction with limited opening, after traumatic extraction of a mandibular third molar, in which manual reduction of temporomandibular joint articular disc was performed, it was possible to prove that this technique is effective in the prompt restoration of mandibular movements.

View Article: PubMed Central - PubMed

Affiliation: Universidade de São Paulo, São Paulo, São Paulo, Brazil.

ABSTRACT

Introduction: Disc displacement without reduction with limited opening is an intracapsular biomechanical disorder involving the condyle-disc complex. With the mouth closed, the disc is in an anterior position in relation to the condylar head and does not reduce with mouth opening. This disorder is associated with persistent limited mandibular opening.

Case report: The patient presented severe limitation to fully open the mouth, interfering in her ability to eat. Clinical examination also revealed maximum assisted jaw opening (passive stretch) with less than 40 mm of maximum interincisal opening. Magnetic resonance imaging was the method of choice to identify the temporomandibular disorders.

Conclusion: By means of reporting this rare case of anterior disc displacement without reduction with limited opening, after traumatic extraction of a mandibular third molar, in which manual reduction of temporomandibular joint articular disc was performed, it was possible to prove that this technique is effective in the prompt restoration of mandibular movements.

No MeSH data available.


Related in: MedlinePlus