Aim To determine cephalometrically the mechanism of the treatment effects of non-extraction and multiloop edgewise archwire （MEAW） technique on postpeak Class Ⅱ Division 1 patients. Methodology In this retrospectiv...Aim To determine cephalometrically the mechanism of the treatment effects of non-extraction and multiloop edgewise archwire （MEAW） technique on postpeak Class Ⅱ Division 1 patients. Methodology In this retrospective study, 16 postpeak Class Ⅱ Division 1 patients successfully corrected using a non-extraction and MEAW technique were cephalometrically evaluated and compared with 16 matched control subjects treated using an extraction technique. Using CorelDRAW software, standardized digital cephalograms preand post-active treatments were traced and a reference grid was set up. The superimpositions were based on the cranial base, the mandibular and the maxilla regions,and skeletal and dental changes were measured. Changes following treatment were evaluated using the paired-sample t-test. Student＇s t-test for unpaired samples was used to assess the differences in changes between the MEAW and the extraction control groups. Results The correction of the molar relationships comprised 54% skeletal change （mainly the advancement of the mandible） and 46% dental change. Correction of the anterior teeth relationships comprised 30% skeletal change and 70% dental change. Conclusion The MEAW technique can produce the desired vertical and sagittal movement of the tooth segment and then effectively stimulate mandibular advancement by utilizing the residual growth potential of the condyle.展开更多
This review discusses how halide ion species have been used as charge carriers in both anion rocking-chair and dual-ion battery(DIB)systems.The anion rocking-chair batteries based on fluoride and chloride have emerged...This review discusses how halide ion species have been used as charge carriers in both anion rocking-chair and dual-ion battery(DIB)systems.The anion rocking-chair batteries based on fluoride and chloride have emerged over the past decade and are garnering increased research interest due to their large theoretical energy density values and the natural abundance of halide-containing materials.Moreover,DIBs that use halide species as their anionic charge carrier are seen as one of the promising next-generation battery technologies due to their low cost and high working potentials.Although numerous polyatomic anions have been studied as charge carriers,the use of single halide ions(i.e.,F−and Cl−)and metal-based superhalides(e.g.,[MgCl_(3)]−)as anionic charge carriers in DIBs has been considerably less explored.Herein,we provide an overview of some of the key advances and recent progress that has been made with regard to halide ion charge carriers in electrochemical energy storage.We offer our perspectives on the current state of the field and provide a roadmap in hopes that it helps researchers toward making new advances in these promising and emerging areas.展开更多
文摘Aim To determine cephalometrically the mechanism of the treatment effects of non-extraction and multiloop edgewise archwire （MEAW） technique on postpeak Class Ⅱ Division 1 patients. Methodology In this retrospective study, 16 postpeak Class Ⅱ Division 1 patients successfully corrected using a non-extraction and MEAW technique were cephalometrically evaluated and compared with 16 matched control subjects treated using an extraction technique. Using CorelDRAW software, standardized digital cephalograms preand post-active treatments were traced and a reference grid was set up. The superimpositions were based on the cranial base, the mandibular and the maxilla regions,and skeletal and dental changes were measured. Changes following treatment were evaluated using the paired-sample t-test. Student＇s t-test for unpaired samples was used to assess the differences in changes between the MEAW and the extraction control groups. Results The correction of the molar relationships comprised 54% skeletal change （mainly the advancement of the mandible） and 46% dental change. Correction of the anterior teeth relationships comprised 30% skeletal change and 70% dental change. Conclusion The MEAW technique can produce the desired vertical and sagittal movement of the tooth segment and then effectively stimulate mandibular advancement by utilizing the residual growth potential of the condyle.
基金Division of Materials Research,Grant/Award Number:2004636Division of Chemical,Bioengineering,Environmental,and Transport Systems,Grant/Award Number:1551693。
文摘This review discusses how halide ion species have been used as charge carriers in both anion rocking-chair and dual-ion battery(DIB)systems.The anion rocking-chair batteries based on fluoride and chloride have emerged over the past decade and are garnering increased research interest due to their large theoretical energy density values and the natural abundance of halide-containing materials.Moreover,DIBs that use halide species as their anionic charge carrier are seen as one of the promising next-generation battery technologies due to their low cost and high working potentials.Although numerous polyatomic anions have been studied as charge carriers,the use of single halide ions(i.e.,F−and Cl−)and metal-based superhalides(e.g.,[MgCl_(3)]−)as anionic charge carriers in DIBs has been considerably less explored.Herein,we provide an overview of some of the key advances and recent progress that has been made with regard to halide ion charge carriers in electrochemical energy storage.We offer our perspectives on the current state of the field and provide a roadmap in hopes that it helps researchers toward making new advances in these promising and emerging areas.
