Endoscopic Ear surgery is evolving day by day and there is need for constant improvement in terms of instrumentation with efficient, quicker, with clear bloodless surgical field and good postoperative outcome and results. The application of Dr Ahila\'s Endoscopic Ear Surgery Chisel and Mallet are presented. This innovation will provide limited and adequate bone removal in a faster way than drill in endoscopic mastoidectomy and stapedotomy surgeries. Surgical instruments represent a major financial asset to the health care facilities. The use of Dr Ahila\'s Endoscopic Ear Surgery straight 1 mm or 2 mm Chisel and Mallet is presented. Dr Ahila\'s Endoscopic Ear Surgery Chisel and Mallet, this innovation will provide faster bone removal than drill or curette without bone dust formation, fogging, irrigation in Endoscopic mastoidectomy and stapedotomy. This instrument is essential to avoid costly replacement, surgeon satisfaction, reduce cost and delays in the operating room and in safe and trained hands enhance patient safety.
UNASSIGNED: The online version contains supplementary material available at 10.1007/s12070-023-03629-0.

Rachiotomy entails vertebral surgical incision, generally followed by exposure of the spinal cord, and is performed primarily for educational, research, or medicolegal purposes. Over time, several tools have been developed for this procedure, but Lodovico Brunetti designed the first effective prototypes in the mid-nineteenth century. To show the technical details of and the necessary maneuvers to be performed for Brunetti\'s rachiotomies to succeed, a computer-aided systematic literature review of online databases was performed to identify publications concerning Brunetti\'s chisels used for rachiotomy. Additional references from the studies and treatises included held in the Historical Section of the Medical Library at the University of Padova were checked manually for pertinent information. The known variants of Brunetti\'s chisels were reported in detail from the first to the third versions produced and intended for both posterior (first and third prototypes) and anterior (second prototype) vertebral dissection. Further evolution that led to the current commercialized model devoted to posterior use also was described. The models\' strengths and weaknesses were assessed, as well as the nature of the changes Brunetti introduced over time and their motivation. In conclusion, these tools could represent an alternative to the use of electric saws, particularly for dissectors who prefer to have greater manual control in incising the vertebrae. Clin. Anat. 33:355-364, 2020. © 2019 Wiley Periodicals, Inc.

A novel anatomically shaped (\"anatomical\") woodworking chisel handle was developed for wood scraping operation. 18 students participated in an evaluation study to compare the new handle against seven readymade handles of ¾-inch bench chisels in the context of a standard wood scraping task. A comfort questionnaire for hand tools (CQH) and a hand-based pain map were used for evaluating and comparing the handles. \'Functionality\' and \'sweating\' were found to be the most and least important comfort concerns, respectively. Maximum pain was reported at distal digit 1, and least pain at proximal digit 4. The anatomical handle was rated best for most of the comfort descriptors, least painful for most hand regions and took the least time for a standardized task.

Outbreaks of coral diseases continue to reduce global coral populations. In the Caribbean, yellow band is a severe and wide-spread disease that commonly affects corals of the Orbicella spp. complex, significantly impeding coral reproduction, and hindering the natural recovery of Orbicella spp.
METHODS: Caribbean yellow-band disease (CYBD) lesions may be severe, and often result in the complete loss of coral tissue. The slow spread of CYBD, however, provides an opportunity to test methods to mitigate the disease. Here we report the results of in situ experiments, conducted within Buck Island Reef National Monument in St. Croix, USVI, to test the effectiveness of three techniques to minimize disease impact on Orbicella faveolata: (1) shading, (2) aspirating, and (3) chiseling a \"firebreak\" to isolate the lesion. Neither shading nor aspirating the diseased tissue significantly reduced CYBD tissue loss. However, chiseling reduced the rate and amount of tissue lost by 31%. While 30-40% of the chiseled lesions appeared to be free of disease signs 12-16 months after treatment, success significantly and steadily declined over 23 months, indicating a possible lack of long-term viability of the technique. The results of this study demonstrate that creating a \"firebreak\" between diseased and healthy-appearing tissue slows the spread of the disease and may prolong the life of O. faveolata colonies. The firebreak method yielded the best results of all the techniques tested, and also required the least amount of effort and resources. However, we do not recommend that this treatment alone be used for long-term disease mitigation. Rather, we propose that modifications of this and other treatment options be sought. The results also highlight the need for extended monitoring of CYBD after any treatment, due to the slow but variable rate and pattern of tissue loss in this disease.

Historical and recent challenges to the practice of comparative forensic examination have created a driving force for the formation of objective methods for toolmark identification. In this study, fifty sequentially manufactured chisels were used to create impression toolmarks in lead (500 toolmarks total). An algorithm previously used to statistically separate known matching and nonmatching striated screwdriver marks and quasi-striated plier marks was used to evaluate the chisel marks. Impression toolmarks, a more complex form of toolmark, pose a more difficult test for the algorithm that was originally designed for striated toolmarks. Results show in this instance that the algorithm can separate matching and nonmatching impression marks, providing further validation of the assumption that toolmarks are identifiably unique.

In long-standing edentulous cases, the alveolar bone generally demonstrates vertical and horizontal atrophy. Rehabilitating these patients with dental implants is difficult unless treatment is accompanied by some kind of augmentation procedures, all of which include specific disadvantages. One such technique, alveolar ridge splitting, is suitable only for enhancing ridge width. It has the advantage of reducing treatment time significantly, as implants can be placed simultaneously. This article offers a brief description of the procedure along with 3 case reports.