Sample calculations for comparison of 2 means
Acommon question in orthodontic research is “how many patients do I need for my study?” The next articles will introduce relevant concepts that will help readers to understand how to…
Dosimetry of a cone-beam computed tomography machine compared with a digital x-ray machine in orthodontic imaging
Introduction Cone-beam computed tomography (CBCT) has become a routine imaging modality for many orthodontic clinics. However, questions remain about the amount of radiation patients are exposed to during the scans….
Real-time cell analysis of the cytotoxicity of orthodontic mini-implants on human gingival fibroblasts and mouse osteoblasts
Introduction The aim of this study was to evaluate the cytotoxic effects of orthodontic mini-implants on gingival fibroblasts and osteoblasts. Methods The orthodontic mini-implants used in this study were Orthodontic…
Cone-beam computed tomography is not the imaging technique of choice for comprehensive orthodontic assessment
It was a pleasure to see that Dr Larson did not take the extreme view of proposing cone-beam computed tomography (CBCT) as a routine diagnostic modality—ie, for every patient, irrespective…
Cone-beam computed tomography is the imaging technique of choice for comprehensive orthodontic assessment
It is interesting to observe the adoption of new technology in dentistry and orthodontics. Of particular interest is the use of cone-beam computed tomography (CBCT) as the imaging protocol of…
Residents’ journal review
The relationship between posterior crossbites and temporomandibular disorders Thilander B, Bjerklin K. Posterior crossbite and temporomandibular disorders (TMDs): need for orthodontic treatment? Eur J Orthod 2011 Sep 6 [Epub ahead…
Quest for the best
It is 3:30 on Wednesday afternoon, and you are in the midst of the typically brisk after-school pace. Even though your reception room is full, you decide to take a…
The AJO-DOblog
When I wrote my second editorial for the AJO-DO for the February 2011 issue, I titled it “You have the final word.” The purpose of that editorial was to emphasize…
Author’s response
We would like to thank Dr Doshi for his useful comments and the opportunity to discuss our article. We contrasted 2 treatment strategies and named them “intrusive” and “extrusive” based…
Questioning treatment strategies in hyperdivergent patients
It was fascinating to read the retrospective research article in the September issue comparing 2 contrasting conventional strategies to treat growing hyperdivergent patients (Gkantidis N, Halazonetis DJ, Alexandropoulos E, Haralabakis…
