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Free grafting of autogenous coronoid process
Oral and maxillofacial surgery
Free grafting of autogenous coronoid process for condylar reconstruction in
patients with temporomandibular joint ankylosis
Song-song Zhu DDSa, Jing Hu DDS, PhDb, , , Jihua Li DDSb, En Luo DDSa,
Xinhua Liang DDSb and Ge Feng PhDa
aResearch Fellow, State Key Laboratory of Oral Diseases, Sichuan University,
Chengdu, China bFaculty, Department of Oral and Maxillofacial Surgery,
West China College of Stomatology, Sichuan University, Chengdu, China
Objective
This article describes the clinical effects of condylar reconstruction by
free grafting of autogenous coronoid process in patients with temporomandibular
joint (TMJ) ankylosis.
Study design
Fifteen cases of uni- or bilateral TMJ ankylosis during a 3-year period from
March 2004 to March 2007 were surgically treated, and the average observation
period was 22 months. All patients were treated by condylar reconstruction of
immediate autogenous coronoid process grafts. Temporal muscle myofascial flaps
or native articular disc was used as an interpositional tissue. Clinical
examination, radiographs, and photographs were used postoperatively to evaluate
the grafts and TMJ function.
Results
Satisfactory mouth opening was achieved in 14 cases, and 1 patient showed signs
of reankylosis of the joint (20 mm mouth opening). Radiographic examination
showed that bone union occurred between the grafts and the ramus in all cases.
Some bony resorption of the grafted coronoid process was observed in all patients,
but no occlusal changes were noted.
Conclusion
Satisfactory clinical outcomes are obtained after the condylar reconstruction by
free grafting of autogenous coronoid process. Therefore, autogenous coronoid process
may be a suitable bone resource for condylar reconstruction in patients with
TMJ ankylosis.
Management of atrophic maxilla in severe osteoporosis treated with bisphosphonates:
a case report
Jesús Torres DDS, PhDa, , , Faleh Tamimi DDS, PhDb, Ignacio García DDS, PhDa,
Jose Luis Cebrian DDS, PhDa, Enrique López-Cabarcos MD, DDS, PhDc
and Antonio Lopez MD, DDS, PhDd
aAssistant Professor, Department of Health Sciences III, Faculty of Health Sciences,
Rey Juan Carlos University.Madrid, Spain bResearch Fellow, Department of Health
Sciences III, Faculty of Health Sciences, Rey Juan Carlos University, Madrid,
Spain cProfessor, Department of Physical Chemistry. Faculty of Pharmacy,
Complutense University, Madrid, Spain dProfessor, Department of Health Sciences III,
Faculty of Health Sciences, Rey Juan Carlos University, Madrid, Spain
Studies investigating whether osteoporosis is a risk factor for using implants have
revealed no correlation between possible implant failure and the severity of
osteoporosis. However, osteoporotic patients frequently require bone regeneration
techniques, because they do not fulfil optimum conditions for implant placement owing
to the diminished bone structure and rapid resorption of the alveolar bone.
We present a successful case of advanced implant therapy using platelet-rich plasma
in a patient with severe osteoporosis who had been previously treated with
bisphosphonates. We are not aware that this technique has been previously described
in literature.
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