TY - JOUR
T1 - Pycnodysostosis
T2 - Characteristics of teeth, mouth and jaws
AU - Ferlias, Nikolaos
AU - Gjørup, Hans
AU - Doherty, Mia Aagaard
AU - Pedersen, Thomas Klit
N1 - Publisher Copyright:
© 2024 The Authors. Orthodontics & Craniofacial Research published by John Wiley & Sons Ltd.
PY - 2024/8
Y1 - 2024/8
N2 - Objectives: To describe the clinical and radiographic oro-dental characteristics of patients with pycnodysostosis (PDO). Materials & Methods: A short interview and clinical examination of seven patients with PDO were performed as well as assessment of the temporomandibular joints and masticatory muscles using the diagnostic criteria for temporomandibular disorders, DC-TMD form. A full set of records were taken including photos and intraoral scan. Finally, existing cone beam computed tomography (CBCT) images and radiographs were also studied. Results: All patients presented with bimaxillary micrognathia, five had a convex profile, and two had a straight profile. In addition, posterior open bite, Angle Class III molar relation with accompanying anterior crossbite and a grooved median palate were common findings. No patient showed symptoms of temporomandibular disorder (TMD) apart from some clicking. Finally, the main radiographic findings were the obtuse mandibular angle, the frontal bossing, the elongation of the coronoid/condylar process and the presence of hypercementosis with obliterated pulp chambers. Conclusion: The examined patients with PDO were characterized by dental crowding, malocclusion (anterior crossbite, posterior open bite), hypercementosis, obliterated pulp chambers and deviations in mandibular morphology. In conclusion, patients with PDO have a specific need for dental and orthodontic monitoring with focus on crowding and posterior open bite. The patients will benefit from a long-term orthodontic plan including extractions.
AB - Objectives: To describe the clinical and radiographic oro-dental characteristics of patients with pycnodysostosis (PDO). Materials & Methods: A short interview and clinical examination of seven patients with PDO were performed as well as assessment of the temporomandibular joints and masticatory muscles using the diagnostic criteria for temporomandibular disorders, DC-TMD form. A full set of records were taken including photos and intraoral scan. Finally, existing cone beam computed tomography (CBCT) images and radiographs were also studied. Results: All patients presented with bimaxillary micrognathia, five had a convex profile, and two had a straight profile. In addition, posterior open bite, Angle Class III molar relation with accompanying anterior crossbite and a grooved median palate were common findings. No patient showed symptoms of temporomandibular disorder (TMD) apart from some clicking. Finally, the main radiographic findings were the obtuse mandibular angle, the frontal bossing, the elongation of the coronoid/condylar process and the presence of hypercementosis with obliterated pulp chambers. Conclusion: The examined patients with PDO were characterized by dental crowding, malocclusion (anterior crossbite, posterior open bite), hypercementosis, obliterated pulp chambers and deviations in mandibular morphology. In conclusion, patients with PDO have a specific need for dental and orthodontic monitoring with focus on crowding and posterior open bite. The patients will benefit from a long-term orthodontic plan including extractions.
KW - bone disease
KW - oro-dental features
KW - orthodontics
KW - pycnodysostosis
KW - rare disease
UR - http://www.scopus.com/inward/record.url?scp=85189536600&partnerID=8YFLogxK
U2 - 10.1111/ocr.12782
DO - 10.1111/ocr.12782
M3 - Journal article
C2 - 38532649
AN - SCOPUS:85189536600
SN - 1601-6335
VL - 27
SP - 656
EP - 664
JO - Orthodontics and Craniofacial Research
JF - Orthodontics and Craniofacial Research
IS - 4
ER -