Evidence map›Paper›PMID 35771318›Full record

ArticleOral radiology2023

High prevalence of taurodontism in North China and its relevant factors: a retrospective cohort study.

Yunmeng Da, Chao Wang, Le Zhang, Fuyin Wang, Haoxuan Sun, Xiaolan Ma, Xuliang Ma, Rui Li, Zhiyin Zhang, Dongzhen Li and 1 more

Abstract read
PubMed Publisher
In one paragraph

Article in Oral radiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.5field-weighted citation impact, top 39% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 6 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 2 institutions in 1 country.

Yunmeng DaHebei Provincial Key Laboratory of Ophthalmology, Hebei Clinical Medical Research Center of Eye Diseases, Department of Prosthodontics, Hebei Eye Hosipital, Quanbei East Street, No.:399, Xiangdu, Xingtai, China. dayunmeng@126.com.ORCID 0000-0003-3474-7519
Chao WangHebei Provincial Key Laboratory of Ophthalmology, Hebei Clinical Medical Research Center of Eye Diseases, Department of Implantation, Hebei Eye Hosipital, Quanbei East Street, No.:399, Xiangdu, Xingtai, China.
Le ZhangHebei Provincial Key Laboratory of Ophthalmology, Hebei Clinical Medical Research Center of Eye Diseases, Department of Oral and Maxillofacial Surgery, Hebei Eye Hosipital, Quanbei East Street,No.:399, Xiangdu, Xingtai, China.
Fuyin WangHebei Clinical Medical Research Center of Eye Diseases, Hebei Provincial Key Laboratory of Ophthalmology, Department of Medical Imaging, Hebei Eye Hosipital, Quanbei East Street, No.:399, Xiangdu, Xingtai, China.
Haoxuan SunHebei Provincial Key Laboratory of Ophthalmology, Hebei Clinical Medical Research Center of Eye Diseases, Department of Oral and Maxillofacial Surgery, Hebei Eye Hosipital, Quanbei East Street,No.:399, Xiangdu, Xingtai, China.
Xiaolan MaHebei Provincial Key Laboratory of Ophthalmology, Hebei Clinical Medical Research Center of Eye Diseases, Department of Dental Internal Medicine, Hebei Eye Hosipital, Quanbei East Street, No.:399, Xiangdu, Xingtai, China.
Xuliang MaHebei Provincial Key Laboratory of Ophthalmology, Hebei Clinical Medical Research Center of Eye Diseases, Department of Oral and Maxillofacial Surgery, Hebei Eye Hosipital, Quanbei East Street,No.:399, Xiangdu, Xingtai, China.
Rui LiHebei Provincial Key Laboratory of Ophthalmology, Hebei Clinical Medical Research Center of Eye Diseases, Department of Imformation, Hebei Eye Hosipital, Quanbei East Street, No.:399, Xiangdu, Xingtai, China.
Zhiyin ZhangHebei Provincial Key Laboratory of Ophthalmology, Hebei Clinical Medical Research Center of Eye Diseases, Department of Prosthodontics, Hebei Eye Hosipital, Quanbei East Street, No.:399, Xiangdu, Xingtai, China.
Dongzhen LiHebei Provincial Key Laboratory of Ophthalmology, Hebei Clinical Medical Research Center of Eye Diseases, Department of Oral and Maxillofacial Surgery, Hebei Eye Hosipital, Quanbei East Street,No.:399, Xiangdu, Xingtai, China.
Jing JiaDepartment of Stomatology, Third Medical Center of Chinese PLA General Hospital, Yongding road No:69, Haidian, Beijing, China.
Hebei Eye Hospital · CNChinese PLA General Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe purpose of this study was to investigate the prevalence and relevant factors of taurodontism in North China.

methodsWe retrospectively analysed the cone beam computed tomography (CBCT) of 1025 patients (496 male and 529 female) aged between 10 and 59 years. The crown-body/root (CB/R) ratios of the maxillary and mandibular molars were measured. The prevalence of hypotaurodontism, mesotaurodontism, and hypertaurodontism was then calculated and the incidence of taurodontism along with its relevant factors, was evaluated.

resultsThe overall rate of taurodontism in North China was as high as 78.9%. If the third molars (opsigenes) were excluded, which have a big morphological variation from each other, the rate was 52.4%. The mean CB/R ratio of taurodontism differs from tooth position: maxillary mandibular third molars > maxillary third molars > maxillary second molars > maxillary first molars > mandibular second molars > mandibular first molars (P < 0.05). In addition, the 1025 patients were divided into different age groups, and it was found that the mean CB/R ratio decreased with age (P < 0.05). Moreover, the CB/R ratio of the mandibular first and second molars in female patients was higher than males (P < 0.05).

conclusionThis study revealed that taurodontism is widely prevalent in North China. The incidence of taurodontism increases the closer the tooth is to the back end of the dental arch, and quite a few of the maxillary and mandibular third molars teeth have tapered roots. And the taurodontism is decreased by age, as there were more affected female than male patients.

Indexed as

Tooth RootAdolescentAdultChildChinaDental Pulp CavityFemaleHumansMaleMiddle AgedPrevalenceRetrospective StudiesTooth AbnormalitiesYoung AdultAgeCBCTCrown-body/root ratioSexTaurodontismTooth position

Identifiers

PMID35771318
OpenAlexW4283726489

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.