Journal of the Massachusetts Dental Society最新文献

Objectives: To provide an organized resource for clinicians and patients to use to understand the treatment options and outcomes for orthodontics in terms of extracting or not extracting permanent teeth.

Methods: Literature published from January 2000 to current was searched in the electronic databases Cochrane Central Register of Controlled Trials and PubMed. Study inclusion criteria included comparing the extraction technique versus no extraction, average age of participants was 10 years old, and if relevant, crowding between 4-10 mm. Each article was arranged by type of extraction and malocclusion corrected to find similarities. The data was observed for common variables measured.

Results: From the 23 articles reviewed, 10 appear to fit the criteria. Although some studies showed contradicting results, there can be some associations drawn. A trend can be noted of an increase in the incisor mandibular plane angle (IMPA), an increase in lower lip thickness, and proclination of incisors after orthodontic treatment with no extractions. In extraction cases, findings were almost the opposite, as lips are more retruded and incisors are more retracted. These findings, along with the other variables, provide an insight as to what facial profiles would be best suited for which treatment.

Conclusions: Patients with more proclined incisors and more protrusive lips may be better with an extraction treatment plan to help compensate for these traits. Ultimately, to decide the best treatment, each case should be assessed individually, as other factors, such as crowding, age, and malocclusion, can lead to vastly different results.

Every five years, a series of studies is carried out by the U.S. CensusBureau that provides an opportunity to review the basic economic well-being of many industries at the national, state, and county level.-A comparison of dental economic data from the 2007 and 2012 stud es for the period that encompassed the 2007-2009 "Great Recession details the general economic difficulties faced by the dental profes-ion during this period. "While much of the economy has recovered since the Great Recession, the earnings of general [dental] practitioners have not, according to the ADA. In fact, 2014's average earnings of $174,780 for all GPs follow 2013's average of $183,885 and come at the end of a nearly decade-long decline since 2005's inflation-adjusted peak of $219,378"1¹Previous presentations in the JOURNAL OF THE MAsSSCHuUSTTs DENTAL Socimetyreviewed concerns regarding national dental economics and dental practice in relation to population changes in Massachusetts.2,3 More recent information is now available for business receipts for dental establishments with employees at the state and county levels that provides an opportunity to consider economic factors and dental practices from another perspective.

Objectives: To evaluate the pneumatization pattern in the temporal bone in patients with cleft lip and palate.

Methods: A retrospective observational analysis of cone beam computed tomography (CBCT) scans of patients with cleft lip and palate was done. The patients were referred for orthodontic treatment and had a unilateral cleft lip and palate and anterior maxillary constriction. Four reference structures were identified to evaluate the extension of pneumatization in the cleft vs non-cleft side temporal bones.

Results: Twenty patients had cleft on the left side and nine patients had cleft on the right side, This study found reduced temporal bone pneumatization on the side of the cleft. The mean score of temporal bone pneumatization on the cleft side was 4.7±1.47 while mean score of pneumatization on the non-cleft side was 6.7±1.80 (P<0.001).

Conclusions: Pneumatization of the temporal bone was significantly lower on the side of the cleft and an identification of this change can help in early diagnosis and management of any ear-related conditions in this vulnerable group of patients to make appropriate referrals for specialized care.