The fourth molar in a mandible found in a Jomon skeleton in Japan

Suzuki, Takao; Kusumoto, Ayano; Fujita, Hisashi; Shi, Chang de

doi:10.1002/oa.1390050211

Cited by 7 publications

(4 citation statements)

References 6 publications

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“…From the palaeopathological point of view, a large number of studies on Jomon skeletal remains has been conducted and published so far (Kiyono & Hoshijima, 1922;Suzuki, 1958;Ogata, 1972;Suzuki, 1978Suzuki, , 1998Suzuki et al, 1995). At present, more than ten thousand skeletal remains from the Jomon period curated in many institutions in Japan are being studied from various points of view, including the population history of the Japanese and palaeopathology.…”

Section: Discussionmentioning

confidence: 97%

Earliest evidence of spinal tuberculosis from the Aneolithic Yayoi period in Japan

Suzuki

Inoue

2006

Intl J of Osteoarchaeology

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Tuberculosis has existed from early prehistoric days to modern times. The main causative agents of tuberculosis worldwide are Mycobacterium tuberculosis (M. tuberculosis) and M. bovis, along with M. africanum, M. cenettii and M. microti; these species make up the 'M. tuberculosis complex'. This worldwide infection has been of special interest to palaeopathologists due to its characteristic bone lesions as well as its great antiquity. Historically, tuberculosis has been recognised in Japan for more than a thousand years. However, the origin and early prevalence of tuberculosis remain unknown. In the present study, we present the earliest evidence of skeletal tuberculosis found in the Aneolithic Yayoi period in Japan (ca. 300 BC to AD 300). The skeletal remains showing typical pathological changes of spinal tuberculosis were dated to between 454 BC and AD 124 by dendrochronological methods using coburied arrow-shield board and house columns made of Japanese cedar. We discuss the early prevalence of this infectious disease and its influence on the population history of the Japanese from prehistoric to Aneolithic times.

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Section: Discussionmentioning

confidence: 97%

Earliest evidence of spinal tuberculosis from the Aneolithic Yayoi period in Japan

Suzuki

Inoue

2006

Intl J of Osteoarchaeology

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“…In the present cases, both the third and fourth molars had incomplete roots in Case 2, making it difficult for them to erupt from a positional standpoint, and in all three cases, the teeth had not yet erupted. With respect to morphology, some reports have indicated that the crown configuration of the distomolars (fourth molars) is often poor when located in the maxilla, with many being peg-shaped, whereas mandibular distomolars or fourth molars have been observed to be similar to normal molars in configuration 4,[7][8][9]15) . Tochihara 12) classified the configurations of the tooth crown as conical molar-shaped, or pseudomorphic, and measured the mean lengths of the teeth, their crowns and roots, and distomesial-by-buccolingual diameters in each of these categories.…”

Section: Discussionmentioning

confidence: 99%

Three Cases of Distomolars

Ohata¹,

Hayashi²,

Iwamoto³

et al. 2013

Bull. Tokyo Dent. Coll.

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The Frequency with which impacted supernumerary teeth are encountered in a clinical setting is relatively high, with the majority of such cases occurrig in the median maxillary region, and very few in the molar region. In the molar region, mandibular distomolars (fourth molars) are very rare. Although a small number of case reports have described impacted supernumerary distomolars, very few have compared third molars and distomolars. Herein, the authors report two cases involving mandibular distomolars and one case a maxillary distomolar. In each of these cases, the third molar and distomolar were extracted and a macroscopic morphological analysis conducted. The results were then compared with those of the latest available literature.

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“…Geographic‐ and population‐specific epidemiological patterning noted in the clinical literature for supernumerary teeth can also be observed in archaeological contexts. A higher propensity for supernumerary teeth in populations from specific geographical regions has been noted (Suzuki et al, 1995 ; Watters, 1962 ; Zhu et al, 1996 ). Furthermore, intraregional prevalence disparities have been reported using modern and historical data (Bello et al, 2019 ; Duncan, 2009 ).…”

Section: Discussionmentioning

confidence: 97%

“…Supernumerary teeth have also been observed in historical and archaeological contexts around the world (Benazzi et al, 2010 ; Duncan, 2009 ; Sciulli, 1977 ; Suzuki et al, 1995 ), including South Africa (De Villiers, 1968 ; Randell, 1925 ; Shaw, 1931 ). Most recently, Van der Merwe and Steyn ( 2009 ) reported on a 19th century assemblage of migrant workers from South Africa with a relatively high incidence of supernumerary teeth at 6.7%, although only in the premolar and molar regions.…”

Section: Introductionmentioning

confidence: 99%

Ancient anomalies: Twinned and supernumerary incisors in a medieval Nubian

Phillips

Irish

Antoine

2021

Intl J of Osteoarchaeology

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During the analysis of a skeletal assemblage from a medieval cemetery in Nubia (c. AD 500–1550), a young adult female with abnormally developed maxillary incisors was discovered. The possible causes of the two dental anomalies found in this individual and their archaeological context are discussed. The remains are from a medieval assemblage from the Fourth Cataract region of Nubia, which forms part of the Nubian collection curated at the British Museum. The left central incisor has a twinned crown with two root canals, and a supernumerary tooth is present on the right side between the central incisor and lateral incisors. Although two different dental anomalies are present, the bilateral expression suggests that the same biological mechanism could be responsible.

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The fourth molar in a mandible found in a Jomon skeleton in Japan

Cited by 7 publications

References 6 publications

Earliest evidence of spinal tuberculosis from the Aneolithic Yayoi period in Japan

Earliest evidence of spinal tuberculosis from the Aneolithic Yayoi period in Japan

Three Cases of Distomolars

Ancient anomalies: Twinned and supernumerary incisors in a medieval Nubian

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