Human feeding patterns have been reconstructed in Archaeology by analysing either oral pathology or stable isotope ratios in human skeletal remains. However, no clear agreement has been developed between these two methodologies. The main objective of this study is to determine if we can establish a link between them when analysing a population with a hyper-specialized diet, in this case marine resources (and millet/maize). To reach this goal we developed a conjoined multi-isotope analysis using collagen and bioapatite (δ¹³C_col, δ¹⁵N_col and δ¹³C_car) and a detailed study of oral health (caries, antemortem loss, periapical lesions, periodontal disease, calculus, and wear). All available skeletons with at least one preserved tooth from two cemeteries of the medieval town of Pontevedra (n = 34) were studied. The buried individuals belonged to the guild of fishers and artisans, professions which were dominant among the families of medieval Pontevedra. A detailed FTIR-ATR study of extracted bone bioapatite showed a high correlation between bioapatite carbonate content, carbonate typical vibrations, and FTIR-ATR indices related to bone diagenesis, which is in line with previous research. No significant correlations were found with bioapatite yield and isotopic composition (δ¹³C_car and Δ¹³C), ruling out possible diagenetic effects. The diet was based on marine fish protein with contributions of millets (e.g., δ¹³C_car -11.9 ± 1.8‰) that seems to be slightly higher in individuals linked to artisanal guilds. The oral pathology study shows severe dental wear from an early age (Grade 2–4 in permanent dentition for 20% of infants and 60% of juveniles in M1), as well as moderate-high presence of caries in permanent dentition (64%, 22/34) and dental calculus (72%, 24/33). Both the oral pathology and the isotopic signal differ from that observed in other areas of the Iberian Peninsula. This study points to the existence of connections between findings of the two methodologies, and specifically an association between intense dental wear and high consumption of marine resources and millet. At the same time, this analysis implies the necessity of caution in estimation of age by dental wear in populations linked to the sea.

考古学通过分析口腔病理学或人类骨骼遗骸中的稳定同位素比率，重建了人类的进食模式。然而，这两种方法之间尚未达成明确的一致。这项研究的主要目的是确定在分析具有超专业饮食的人群（在本例中是海洋资源（和小米/玉米））时，我们是否可以在它们之间建立联系。为了实现这一目标，我们使用胶原蛋白和生物磷灰石（δ ¹³ C _col、δ ¹⁵ N _col和 δ ¹³ C _car ）开发了联合多同位素分析，并对口腔健康（龋齿、生前损失、根尖周病变、牙周病）进行了详细研究、微积分和磨损）。研究人员对来自中世纪小镇庞特维德拉 (Pontevedra) 两个墓地的所有可用骨骼（n = 34）进行了研究，其中至少有一颗保存完好的牙齿。被埋葬的人属于渔民和工匠行会，这些职业在中世纪庞特维德拉的家庭中占主导地位。对提取的骨生物磷灰石进行的详细 FTIR-ATR 研究表明，生物磷灰石碳酸盐含量、碳酸盐典型振动和与骨成岩作用相关的 FTIR-ATR 指数之间存在高度相关性，这与之前的研究一致。未发现生物磷灰石产量和同位素组成（δ ¹³ C _car和 Δ ¹³ C）存在显着相关性，排除了可能的成岩作用。饮食以海洋鱼蛋白和小米的贡献为基础（例如，δ ¹³ C _car -11.9 ± 1.8‰），在与手工业行会有联系的个体中似乎略高。口腔病理学研究显示，从小就有严重的牙齿磨损（M1 中 20% 的婴儿和 60% 的青少年恒牙列 2-4 级），以及恒牙列中存在中度至高度龋齿（64%， 22/34）和牙结石（72%，24/33）。口腔病理学和同位素信号都与伊比利亚半岛其他地区观察到的不同。这项研究指出两种方法的研究结果之间存在联系，特别是牙齿的剧烈磨损与海洋资源和小米的高消耗之间存在联系。与此同时，这一分析表明，在通过与海洋有关的人群的牙齿磨损来估计年龄时必须谨慎。