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Objectives: The aim of the present study was to investigate the prevalence of impacted and supernumerary teeth, apart from third molars. Study design: This was a retrospective study of 1.239 panoramic radiographs taken of patients who presented to the Department of Dentoalveolar Surgery, Implantology and Radiology at the School of Dentistry of the Aristotle University of Thessaloniki, Greece between 1991 and 1999. The panoramic radiographs and dental records were reviewed in order to determine whether there were impacted or supernumerary teeth. Observations were also made on the space in dentition, corresponding to the position of each impacted tooth, the lack of space for tooth eruption, transmigration, retained primary teeth or prosthetic restoration. Results: A total of 170 (13.7%) patients presented with at least one impacted tooth. None of them had an impacted incisor. Impacted canines were the most prevalent dental anomaly (8.8%), followed by impacted premolars (2.2%). Supernumerary teeth (1.8%) and impacted molars (1%) were the least common anomalies. Among the 225 impacted teeth, the most frequently affected teeth were the canines (59.6%), followed by premolars (19.1%), and supernumerary teeth (15.1%), while the incidence of impacted molars was substantially lower (6.2%). Conclusions: The most frequently impacted teeth were the maxillary canine, the second mandibular premolar and the second mandibular molar. The majority of the supernumerary teeth consisted of mesiodens. There was space in the dentition of each impacted tooth in 29.3% of the cases examined; there was a retained primary tooth in 25.1%, and a prosthetic restoration had been constructed in 24%. Insufficient space for the eruption of the impacted tooth and transmigration was observed in 17.3% and 4.2% of the cases, respectively.

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AimTo present a scientometric analysis of the entire body of scientific publications in the field of vital pulp therapy (VPT) and analyse the research trends and popular topics.MethodologyA comprehensive literature search was conducted in the Web of Science and Scopus databases on 21 August 2020 to identify all articles related to VPT. The publications were reviewed and basic research parameters were collected, including publication year, patterns of authorship, geographical distribution of scientific productions, journals, h‐index, study design and keyword analysis. Web of Science, Scopus and Google Scholar databases were used for the citation analysis of the ten top cited articles. The data were analysed using VOSviewer and visualized by tables and diagrams.ResultsIn total, 1197 VPT‐associated items were identified from 64 countries in 176 journals. The majority of papers were published in the Journal of Endodontics. The United States of America was the leading country for number of publications, citations, h‐index and collaborations. The distribution of articles based on study design was as follows: basic science (35%), clinical (27%), observational studies (26%) and review publications (12%). The most frequently occurring keywords were pulpotomy, mineral trioxide aggregate, calcium hydroxide and direct pulp capping.ConclusionsThis scientometric analysis outlines the evolutionary trends and the productivity of researchers and countries in the field of vital pulp therapy. Research output is dominated by basic science articles involving innovative materials published in high impact factor dental journals.

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