Ectopic Eruption of Maxillary First Permanent Molars: Preliminary Results of Prevalence and Dentoskeletal Characteristics in Spanish Paediatric Population.

Helm, Alexandra; Martín-Vacas, Andrea; Molinero-Mourelle, Pedro; Caleya, Antonia M; Gallardo, Nuria E; Mourelle-Martínez, María Rosa (2021). Ectopic Eruption of Maxillary First Permanent Molars: Preliminary Results of Prevalence and Dentoskeletal Characteristics in Spanish Paediatric Population. Children, 8(6) MDPI 10.3390/children8060479

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The ectopic eruption of the maxillary first permanent molar (EEM) is a local alteration of dental eruption with a multifactorial aetiology. The aims of our study were to determine the prevalence of the EEM in children and to analyse whether there is a relationship between EEM and dento-skeletal characteristics. A total of 322 children were analysed with the Ricketts cephalometric study and descriptive and analytical statistical analysis was carried out. The prevalence of EEM was 8.7%, with no statistically significant differences regarding gender or location, but a higher prevalence in the 7-year-old age group (18.8%) and bilateral EEM was more prevalent than unilateral EEM (p < 0.05). The most frequent findings were a shortened anterior cranial base, a retroposition of the maxilla and a distal position of the upper permanent first molar in relation to the pterygoid vertical in children with EEM. No statistically significant differences were found regarding the cephalometric parameters except a decreased palatal plane in the bilateral EEM group and a distal upper incisor position in the EEM group (p < 0.05). In conclusion, the prevalence of the EEM was 8.7%, more frequently bilateral, and significantly in seven-year-old patients. Children with bilateral EEM have decreased palatal plane values and a more posterior position of the upper incisor.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Reconstructive Dentistry and Gerodontology

UniBE Contributor:

Molinero Mourelle, Pedro

Subjects:

600 Technology > 610 Medicine & health

ISSN:

2227-9067

Publisher:

MDPI

Language:

English

Submitter:

Lena Augé

Date Deposited:

23 Nov 2021 15:19

Last Modified:

05 Dec 2022 15:54

Publisher DOI:

10.3390/children8060479

PubMed ID:

34204053

Uncontrolled Keywords:

children ectopy eruption first permanent molar molar orthodontics interceptive patient care planning tooth eruption

BORIS DOI:

10.48350/161333

URI:

https://boris.unibe.ch/id/eprint/161333

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