Time-Efficiency Analysis Comparing Digital and Conventional Workflows for Implant Crowns: A Prospective Clinical Crossover Trial

PURPOSE To compare time-efficiency in the production of implant crowns using a digital workflow versus the conventional pathway. MATERIALS AND METHODS This prospective clinical study used a crossover design that included 20 study participants receiving single-tooth replacements in posterior sites. Each patient received a customized titanium abutment plus a computer-aided design/computer-assisted manufacture (CAD/CAM) zirconia suprastructure (for those in the test group, using digital workflow) and a standardized titanium abutment plus a porcelain-fused-to-metal crown (for those in the control group, using a conventional pathway). The start of the implant prosthetic treatment was established as the baseline. Time-efficiency analysis was defined as the primary outcome, and was measured for every single clinical and laboratory work step in minutes. Statistical analysis was calculated with the Wilcoxon rank sum test. RESULTS All crowns could be provided within two clinical appointments, independent of the manufacturing process. The mean total production time, as the sum of clinical plus laboratory work steps, was significantly different. The mean ± standard deviation (SD) time was 185.4 ± 17.9 minutes for the digital workflow process and 223.0 ± 26.2 minutes for the conventional pathway (P = .0001). Therefore, digital processing for overall treatment was 16% faster. Detailed analysis for the clinical treatment revealed a significantly reduced mean ± SD chair time of 27.3 ± 3.4 minutes for the test group compared with 33.2 ± 4.9 minutes for the control group (P = .0001). Similar results were found for the mean laboratory work time, with a significant decrease of 158.1 ± 17.2 minutes for the test group vs 189.8 ± 25.3 minutes for the control group (P = .0001). CONCLUSION Only a few studies have investigated efficiency parameters of digital workflows compared with conventional pathways in implant dental medicine. This investigation shows that the digital workflow seems to be more time-efficient than the established conventional production pathway for fixed implant-supported crowns. Both clinical chair time and laboratory manufacturing steps could be effectively shortened with the digital process of intraoral scanning plus CAD/CAM technology.

"Teens talk healthy weight": A video technology project

Purpose. The purpose of this study was to investigate the impact of a motivational weight management DVD on knowledge of obesity related diseases, readiness, motivation, and self-efficacy to lose weight, connectedness to their care provider, and patients return to clinic. Design. A randomized control trial was conducted in which 40 overweight/obese adolescents and their parents/caregivers were randomly assigned to standard care alone or standard care plus DVD. Subjects completed a set of pre- and post-questionnaire measures. A group of 22 patients was also formed as a historical control group in order to account for the potential effect of extra attention given to subjects prospectively enrolled. Methods. The adolescents and their parent/caregiver were placed into a patient room. Consent was obtained and a set of written pre-questionnaires were given to both the parent and the adolescent. Standard care was provided to all patients by the Registered Dietitian and physician; the DVD was shown in addition to standard care among the intervention group. A set of post-questionnaires were given and compensation was provided. Analysis. Groups were compared to determine equivalence at baseline. Analysis of covariance was used to evaluate changes over time, while controlling for pre-test scores and race/ethnicity. Results. Parents who viewed the DVD experienced greater changes in correct knowledge as compared to parents who did not view the DVD. Conclusion. Our study found only one substantial benefit of the DVD beyond standard clinical practices. This is an important area for change as it increased awareness of obesity as a serious disease and has future clinical implications.^

Surgical trial in traumatic intracerebral haemorrhage (STITCH) : A randomised controlled trial of early surgery compared with Initial conservative treatment

Funding This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme.

Antibiotic treatment for intermittent bladder catheterisation with once daily prophylaxis (the AnTIC study) : Study protocol for a randomised controlled trial

Funder statement This article/paper/report presents independent research funded by the National Institute for Health Research (NIHR). The views expressed are those of the author(s) and not necessarily those of the NHS, the NIHR or the UK Government’s Department of Health. Acknowledgements We would like to acknowledge Dr Graeme MacLennan, Mr Simon Skene, Mr Julian Shah and Dr Nadine Dougall (past member) for their valuable contribution to the study as DMC members. We would like to thank Professor Chris Butler, Dr Emma Hall, Mr Roland Morley, Mr Dan Wood, Ms Jane Laws and Ms Sarah Bittlestone for their oversight of the AnTIC study as members of the TSC, and we would like to thank Ms Heather Armstrong for her contributions as a patient group representative. We thank all Principal Investigators and site staff for their commitment in recruitment for the AnTIC study. Finally, we would like to thank Hazel Wilde for secretarial support. The trial is funded by the NIHR Health Technology Assessment Programme (project reference: 11-72-01) and will be published in full in the Health Technology Assessment journal series. The authors also acknowledge the support of the National Institute for Health Research through the Comprehensive Clinical Research Network.

Reports of cases argued and determined in the Supreme court of judicature; and in the Court for the trial of impeachments and the correction of errors in the state of New York. [1806-1823]

Imprint varies.

The trial of James Stuart : Younger of Dunearn, before the High Court of Justiciary, at Edinburgh, on Monday, June 10, 1822.

Mode of access: Internet.

Trial of twenty-four journeymen tailors, charged with a conspiracy before the Mayor's Court of the city of Philadelphia, September sessions, 1827 /

"An account of one of the earliest labor trials resulting from a strike. The first count of the indictment charges corrupt conspiracy to demand greater than customary wages." Cf. Adams.

Impeachment Trial Committee on the articles against Judge G. Thomas Porteous, Jr. : hearings before the Senate Impeachment Trial Committee, United States Senate, One Hundred Eleventh Congress, second session, on the articles of impeachment against Judge G. Thomas Porteous, Jr. a judge in the United States District Court for the Eastern District of Louisiana, November 16, 2010.

Mode of access: Internet.

The trial at large of Lieut. Gen. Whitelocke, late commander in chief of the forces in South America, by a general court martial, held at Chelsea hospital on Thursday, January 28, 1808, and continued by adjournment to Tuesday, March 15. Taken by Blanchard and Ramsay ... and published from their notes: with a correct copy of the defence, as delivered into court, and the right honourable the judge advocate's reply; also, all the documents produced in evidence.

Mode of access: Internet.

The proceedings of a general court martial, held at Chelsea hospital, on Thursday, January 28, 1808, and continued, by adjournment, till Tuesday, March 15, for the trial of Lieut. Gen. Whitelocke, late commander-in-chief of the forces in South America.

Paged continuously.

Report of a trial : Miles Farmer, versus Dr. David Humphreys, Storer, commenced in the Court of common pleas, April term, 1830, from which it was appealed to the Supreme judicial court, and by consent of parties, referred to referees, relative to the transactions between Miss Eliza Dolph and George Washington Adams /

Action for libel.

Proceedings of a general court martial held at the Horse-Guards, on the 24th and 27th of March 1792 : for the trial of Capt. Richard Powell, Lieut. Christopher Seton, and Lieut. John Hall, of the 54th Regiment of Foot, on several charges preferred against them respectively by William Cobbett, late Serjeant-Major of the said regiment; together with several curious letters which passed between the said William Cobbett and Sir Charles Gould, Judge-Advocate General, and various other documents connected therewith in the order of their dates.

308C636no.195 #12.

A report of the trial of Pedro Gibert, Bernardo de Soto, Francisco Ruiz, Nicola Costa, Antonio Ferrer, manuel Boyga, Domingo de Guzman, Juan Antonio Portana, Manuel Castillo, Angel Garcia, Jose Velazquez, and Juan Montenegro alias Jose Basilio de Castro, before the United States Circuit court, on an indictment charging them with the commission of an act of piracy, on board the brig Mexican, of Salem ; containing a full statement of the testimony, and the arguments of the counsel on both sides, the charge of the court, pronounced by the Hon. Judge Story, and the verdict of the jury. With an appendix containing several documents never before published. by a congressional stenographer.

"Third edition."