A bone-inductive protein, osteogenin, has been isolated from long bones of humans and offers promise as a grafting material. Studies, however, suggest that osteogenin must be combined with a bone-derived matrix in order to initiate bone differentiation. The purpose of this study was to determine if osteogenin combined with demineralized freeze dried bone allograft (DFDBA), a bone-derived matrix, and with a bovine tendon-derived matrix will enhanced regeneration of intrabony defects in humans. The tendon-derived matrix and DFDBA used alone served as controls. The ability of each material to form a new attachment apparatus was evaluated independently in submerged and nonsubmerged environments in 2 patient populations. Lymphocyte testing was performed to assess development of an immune reaction to osteogenin. The most apical level of calculus on the root served as the histologic reference point to measure regeneration. Biopsies were obtained at 6 months and regeneration was measured histomorphometrically by 2 blinded evaluators. Serial sections from 36 submerged defects in 8 patients and 50 nonsubmerged defects in 6 patients were submitted for statistical analysis. Mean results indicate that osteogenin combined with DFDBA significantly enhanced regeneration of a new attachment apparatus and component tissues in a submerged environment. DFDBA plus osteogenin and DFDBA alone formed significantly more new attachment apparatus and component tissues than either the tendon-derived matrix plus osteogenin or the tendon-derived matrix alone in both submerged and nonsubmerged environments. There were no significant differences between the tendon-derived matrix plus osteogenin and the tendon-derived matrix alone in either the submerged or nonsubmerged environment. Osteogenin does not impair normal lymphocyte blastogenesis at 6 months postsurgical challenge.

This text presents practical advice to the veterinary nurse and technician for performing basic dental procedures. The work is easy to read, very infor-mative, and has excellent illustrations.Contents of the Veterinary Dentistry for the Nurse and Technician include:

BackgroundThe COVID-19 pandemic has highlighted the value of global exchange around knowledge, skills and attitudes among senior healthcare professionals (SHPs). It has also revealed the need for strong peer-led networks and mentorship to tackle the high levels of burnout and ‘brain-drain’ already plaguing the National Health Service (NHS). We designed a survey to gauge the appetite for exchange programmes among SHPs.MethodsData collection was carried out via an online qualitative survey generated by SurveyMonkey software and analysed by three independent authors.Results155 responses were collected of which 87.7% were pre-COVID-19 pandemic. 74.2% had ideas to improve healthcare but could not take it forward. 86.6% felt frustrated/down-heartened about work. 74.3% wanted more sharing of teaching resources. 74.2% expressed interest in sabbatical programmes.ConclusionOur survey confirms the desire for more connection, collaboration and exchange among SHPs who are at high risk of burnout, silo-working and leaving the profession early. Sabbaticals have been used successfully in other industries, especially academia, for many years and show long-term investment and value from employers in their employees. Almost 75% of the SHPs in this survey were interested in this but logistics precluded easy access to them. HealthProMatch (HPM) is a platform where SHPs can connect, collaborate and arrange exchanges/sabbaticals with logistical ease. It focuses on bringing leadership, mentorship and quality improvement back home. HPM will pilot in the NHS within anaesthesia and hopes to increase job satisfaction and retention in this precious workforce group.