Department of Surgery and Anesthesiology of Domestic Animals, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.
J Vet Intern Med. 2020 Mar;34(2):1039-1046. doi: 10.1111/jvim.15740. Epub 2020 Feb 28.
Dental disorders, of which tooth root abscesses are best documented, are highly prevalent in alpacas. Identification of risk factors can be valuable for prevention of dental disorders in this species.
HYPOTHESIS/OBJECTIVES: To identify risk factors associated with wear abnormalities, malpositioning, diastemata, periodontal disease (PD), and occlusal pulp exposure at the level of the cheek teeth.
Two hundred twenty-eight alpacas (Vicugna pacos) from 25 farms.
Cross-sectional study. Dental examinations were performed on sedated animals. Risk factors were determined by clinical examination and interview. Multivariable logistic regression was used to identify risk factors for wear abnormalities, malpositioned teeth, diastemata, PD, and occlusal pulp exposure.
Mandibular swelling was significantly associated with PD (odds ratio [OR], 11.37; 95% confidence interval [CI], 3.27-48.81; P < .001). Nearly 73% of included animals with mandibular swelling concurrently had PD. For every increase in herd size of 1 animal, the risk for PD increased by 2% (95% CI, 1-4%; P = .01). The association between severe stages of PD and body condition score (BCS) indicates a painful situation, impairing animal welfare (P < .001). For each 1-day increase in interval between pasture cleanings, the odds of finding pulp exposure for a single animal was estimated to increase by 1% (95% CI, 0-2%; P = .05).
Simple management tools such as measuring BCS, palpating the mandible for bony swellings, removing feces from pasture on a regular basis and decreasing herd size might help identify animals at risk for dental disorders or prevent their development.
牙病在羊驼中非常普遍，其中以牙根脓肿最为常见。确定风险因素对于预防该物种的牙齿疾病非常有价值。
假设/目的：确定与颊齿磨损异常、错位、牙间隙、牙周病（PD）和咬合牙髓暴露相关的风险因素。
来自 25 个农场的 228 只羊驼（Vicugna pacos）。
横断面研究。对镇静动物进行牙科检查。通过临床检查和访谈确定风险因素。使用多变量逻辑回归来确定磨损异常、错位牙、牙间隙、PD 和咬合牙髓暴露的风险因素。
下颌肿胀与 PD 显著相关（比值比 [OR]，11.37；95%置信区间 [CI]，3.27-48.81；P < 0.001）。近 73%的下颌肿胀动物同时患有 PD。每增加 1 只动物的畜群规模，PD 的风险就会增加 2%（95%CI，1-4%；P =.01）。PD 严重程度与身体状况评分（BCS）之间的关联表明存在疼痛情况，损害了动物福利（P < 0.001）。每增加 1 天的牧场清理间隔，单个动物出现牙髓暴露的几率估计增加 1%（95%CI，0-2%；P =.05）。
简单的管理工具，如测量 BCS、触诊下颌骨是否有骨肿胀、定期清除牧场中的粪便以及减少畜群规模，可能有助于识别有牙齿疾病风险的动物或预防其发展。
