Influence of coping and veneer thickness on the color of
zirconia-based restorations on different implant abutment
THE JOURNAL OF PROSTHETIC DENTISTRY
J Prosthet Dent. 2018 Aug 20. pii: S0022-3913(18)
Farhad Tabatabaian, DDS, MS,a Alireza Jafari, DDS, MS,b Mahshid Namdari, PhD,c and Minoo Mahshid, DDS, MSd
دوم از 4 نفر
Objective – To study cephalometric and facial features of Iranian children with
Design – Lateral cephalometric radiographs of thalassemic patients and controls
who were matched for age, sex and ethnic origin were analyzed and compared.
Setting and Sample Population – A total of 30 thalassemic patients (18 male and
12 females) from Aliasghar Hospital, and 30 controls from the Orthodontic
Department of Azad University.
Outcome measure – Size and shape differences in the craniofacial complex
between thalassemic patients and controls.
Results – All thalassemic patients had a Class II skeletal base relationship with an
average ANB angle of 8.75. There was no record of dramatic maxillary
prognathism. However, the mandible of the thalassemic patients appeared to be
smaller in size and more retruded in the face. A pronounced vertical growth direction
was evident from angular and linear measurements. The dental deviations in
thalassemic patients were mainly seen in the proclination and significant
overeruption of incisors and increased overjet. Marked convex lower face and
prominent upper and lower lips were evident from soft-tissue measurements.
Conclusion – Anemia does not only produce overgrowth of the maxilla. It also
produces a retardation of condylar and ramal growth of the mandible producing
Class II skeletal pattern.
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