tailieunhanh - Báo cáo khoa học: "Caries in the infundibulum of the second upper premolar tooth in the horse"

Tuyển tập các báo cáo nghiên cứu về bệnh học thý y được đăng trên tạp chí Acta Veterinaria Scandinavica cung cấp cho các bạn kiến thức về bệnh thú y đề tài: Caries in the infundibulum of the second upper premolar tooth in the horse. | Acta Veterinaria Scandinavica BioMed Central Research Caries in the infundibulum of the second upper premolar tooth in the horse Torbjõrn S Lundstrõm1 Gunnar G Dahlén2 and Ove S Wattle 1 Open Access Address Section of Large Animal Medicine and Surgery Department of Clinical Sciences Swedish University of Agricultural Sciences Box 7054 750 07 Uppsala Sweden and Laboratory for Oral Microbiology Faculty of Odontology Sahlgrenska Academy at Gõteborg Sweden Email Torbjõrn S Lundstrõm - dtv@ Gunnar G Dahlén - dahlen@ Ove S Wattle - Corresponding author Published 28 March 2007 Received II September 2006 Acta Veterinaria Scandinavica 2007 49 10 doi I75I-0I47-49-10 Accepted 28 March 2007 This article is available from http content 49 I I0 2007 Lundstrom et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background Swedish equine dental practices have empirically found that the prevalence of infundibular caries as a primary disorder in the first permanent premolar teeth P2 of the horse upper jaw has increased during the last I0 years. A previously unknown bacterial species Streptococcus devriesei CCUG 47I55T which is related to Streptococcus mutans has recently been isolated from these carious lesions. To understand the aetiology of caries in horses it is essential to elucidate the relationship between S. devriesei and P2 infundibular caries. Methods The anterior infundibulum of maxillary P2 or the occlusal surface at the site of the infundibulum in II7 horses and ponies 77 with and 40 without caries in this tooth was sampled for bacteriological analyses between 1990 and 2004. Samples were transported in VMGA III medium and then .