Effect of micro-osteoperforations
It was refreshing to read the article “Effect of micro-osteoperforations on the rate of tooth movement” in the November issue (Alikhani M, Raptis M, Zoldan B, Sangsuwon C, Lee YB,…
Comparison of stainless steel and titanium alloy orthodontic miniscrew implants: A mechanical and histologic analysis
Material and methods Forty-eight stainless steel (medical class 316 LVM; Dentos, Daegu, South Korea) and 48 titanium alloy (Ti6Al4V; Dentos) self-threading MSIs (length, 6 mm; diameter, 1.6 mm), of identical…
Oral focal mucinosis associated with surgically assisted rapid maxillary expansion
Oral focal mucinosis is a rare soft-tissue lesion that might result from the overproduction of hyaluronic acid by fibroblasts. The lesions are commonly found on the gingiva and palate; however,…
In-vivo force decay of nickel-titanium closed-coil springs
Introduction Nickel-titanium closed-coil springs are purported to deliver constant forces over extended ranges of activation and working times. In-vivo studies supporting this claim are limited. The objective of this study…
Orthodontic retraction of autotransplanted premolar to replace ankylosed maxillary incisor with replacement resorption
This case report describes the successful treatment of an adult with lip protrusion and a previously traumatized maxillary central incisor that had experienced replacement root resorption. An extracted premolar was…
Functional and fixed orthodontic treatment in a child with cerebral palsy
Cerebral palsy is a permanent neuromuscular motor disorder that results from injury in the developing brain during the prenatal or postnatal period. Common functional and craniofacial problems related to cerebral…
Plastics in dentistry and estrogenicity: A guide to safe practice
When chemicals with the ability to alter reproductive, neurologic, and metabolic development are found in common items, the attention they draw can become intense. Bisphenol A (BPA) is 1 such…
Favorable effect of myofibroblasts on collagen synthesis and osteocalcin production in the periodontal ligament
Introduction In this study, we aimed to explore the expressions of α-smooth muscle actin, collagen type I, collagen type III, and osteocalcin in the periodontal ligament (PDL) under orthodontic loading,…
Bias in observational studies
Bias is an important issue in observational studies, and it should be carefully considered when interpreting the results of such studies. In this article, I will highlight the main types…
