Prevalence and patterning of maxillary premolar accessory ridges (MxPARs) in several human populations
Bibliographic Data
| ID | 8319674 |
|---|---|
| Authors | Suzanna Mihailidis (School of Dentistry University of Adelaide Adelaide South Australia 5005 Australia, corresponding author), Graham Scriven (School of Dentistry University of Adelaide Adelaide South Australia 5005 Australia), Mohd Fadhli Khamis (0000-0002-2418-7995, Universiti Sains Malaysia), Mohd Khamis (School of Dental Sciences, Universiti Sains Malaysia Kelantan Malaysia), Grant C Townsend (0000-0002-7216-6996, The University of Adelaide), Grant Townsend (School of Dentistry University of Adelaide Adelaide South Australia 5005 Australia) |
| Year | 2013 |
| Volume | 152 |
| Issue | 1 |
| Pages | 19-30 |
| Publication date | 2013-09-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | American Journal of Physical Anthropology (JOURNAL) |
| Journal identifiers | ISSN: 0002-9483 • E-ISSN: 1096-8644 |
| Publisher | Wiley (PUBLISHER • GB) |
| DOI | 10.1002/ajpa.22323 |
| PMID | 23913636 |
| OpenAlex | W1527319616 |
| Language | EN |
| Citations received | 1 |
| References cited | 10 |
We present new data on the prevalence and patterning of the maxillary premolar accessory ridge (MxPAR), a common but understudied morphological dental trait that is expressed as a linear elevation extending from the buccal cusp ridge to the medial sulcus of maxillary premolar teeth. A total of 579 sets of dental casts, representing six ethnic groups, were scored using the five‐grade system proposed by Burnett et al. (2010). The frequency and distribution of the MxPAR were determined by tooth type, sex, side, locus and ethnicity, and the applicability of the scoring system was assessed. The MxPAR was found in approximately two‐thirds of premolar teeth, more often on second than first premolars, and more often on the distal aspect of the occlusal surface than the mesial. There was some evidence that more pronounced forms of the feature occurred more often in males than females, and that there may be some directionality in its expression between sides. Variation was also noted in the frequency of occurrence and degree of expression of the MxPAR between ethnic groups. Intra‐ and inter‐observer concordance rates for scoring the MxPAR were low, confirming that it was difficult to score the trait identically on two different occasions. Our findings have clarified the distribution of the MxPAR within the dentition and between ethnic groups, and highlighted the need for researchers to carry out thorough replicability studies and to decide on an appropriate breakpoint for determining presence or absence of this feature before embarking on genetic studies or bio‐distance analyses. Am J Phys Anthropol 152:19–30, 2013. © 2013 Wiley Periodicals, Inc
Biology · Concordance · Dentition · Molar · Premolar · dental development and anomalies · Dentistry · Genetics · Medicine · Oral and Maxillofacial Pathology · Orthodontics · Orthodontics and Dentofacial Orthopedics
| Unique citing works | 1 |
|---|---|
| Citations per year | 0,25 |
| Citation span | 2022 - 2022 (1) |
| Citation velocity | historical |
| Highly cited | No |
| Citation types | Neutral: 1 |