Increased Occurrence of Dental Anomalies Associated with Second-Premolar Agenesis

Garib, Daniela Gamba; Peck, Sheldon; Gomes, Simone Carinhena

doi:10.2319/0003-3219(2009)079[0436:ioodaa]2.0.co;2

Cited by 51 publications

(80 citation statements)

References 5 publications

(6 reference statements)

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“…It is a condition where mesiodistal crown width of a lateral incisor is smaller compared with the same dimension of the opposite mandibular lateral incisor of the same patient [23]. …”

Section: Methodsmentioning

confidence: 99%

Prevalence of Third Molar Agenesis: Associated Dental Anomalies in Non-Syndromic 5923 Patients

Sujon¹,

Alam²,

Rahman³

2016

PLoS ONE

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The aim of this study was to investigate the prevalence of third molar agenesis and other associated dental anomalies in Bangladeshi population and to investigate the relationship of other dental anomalies with the third molar presence/agenesis. A retrospective study was performed using panoramic radiographs of 5923 patients, who ranged in age from 10 to 50 years. All radiographs were analyzed by Planmeca Romexis® 3.0 software (Planmeca Oy, Helsinki, Finland). Pearson chi-square and one way ANOVA (Post Hoc) test were conducted. The prevalence of third molar agenesis was 38.4%. The frequency of third molar agenesis was significantly higher in females than males (p <0.025). Third molar agenesis was significantly more prevalent in maxilla as compared to mandible (p <0.007). The prevalence of other dental anomalies was 6.5%, among them hypodontia was 3.1%. Prevalence of third molar agenesis varies in different geographic region. Among the other dental anomalies hypodontia was more prevalent.

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“…It is a condition where mesiodistal crown width of a lateral incisor is smaller compared with the same dimension of the opposite mandibular lateral incisor of the same patient [23]. …”

Section: Methodsmentioning

confidence: 99%

Prevalence of Third Molar Agenesis: Associated Dental Anomalies in Non-Syndromic 5923 Patients

Sujon¹,

Alam²,

Rahman³

2016

PLoS ONE

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“…Sigler, Baccetti and McNamara Jr 30 (2011) showed that individuals with PDC exhibited significantly higher prevalence of small maxillary lateral incisors (six-fold higher), distoangulation of mandibular second premolars (three-fold higher), and infraocclusion of deciduous molars (two-fold higher) compared with a control group. Other studies verified an increased prevalence of PDC in patients screened for other dental anomalies such as second premolar agenesis, small lateral incisors, infraocclusion of deciduous molars, and enamel hypoplasia 2 , 19 , 29 . Family history has already been identified as a risk factor for PDC and other heritable dental anomalies, as well as the gender bias mentioned 24 , 26 , 27 .…”

Section: Introductionmentioning

confidence: 78%

Risk of developing palatally displaced canines in patients with early detectable dental anomalies: a retrospective cohort study

et al. 2016

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The early recognition of risk factors for the occurrence of palatally displaced canines (PDC) can increase the possibility of impaction prevention. Objective To estimate the risk of PDC occurrence in children with dental anomalies identified early during mixed dentition.Material and Methods The sample comprised 730 longitudinal orthodontic records from children (448 females and 282 males) with an initial mean age of 8.3 years (SD=1.36). The dental anomaly group (DA) included 263 records of patients with at least one dental anomaly identified in the initial or middle mixed dentition. The non-dental anomaly group (NDA) was composed of 467 records of patients with no dental anomalies. The occurrence of PDC in both groups was diagnosed using panoramic and periapical radiographs taken in the late mixed dentition or early permanent dentition. The prevalence of PDC in patients with and without early diagnosed dental anomalies was compared using the chi-square test (p<0.01), relative risk assessments (RR), and positive and negative predictive values (PPV and NPV).Results PDC frequency was 16.35% and 6.2% in DA and NDA groups, respectively. A statistically significant difference was observed between groups (p<0.01), with greater risk of PDC development in the DA group (RR=2.63). The PPV and NPV was 16% and 93%, respectively. Small maxillary lateral incisors, deciduous molar infraocclusion, and mandibular second premolar distoangulation were associated with PDC.Conclusion Children with dental anomalies diagnosed during early mixed dentition have an approximately two and a half fold increased risk of developing PDC during late mixed dentition compared with children without dental anomalies.

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“…32 Studies that began with an agenesis sample found PDC prevalences of 5.2%-12.6% in the presence of at least one UI2 agenesis 22,23 and 8.1% in the presence of at least one P2 agenesis. 24 All the aforementioned studies do not account for the potential confounding impact of gender. In contrast, the present study examined gender separately and found no interaction between gender and agenesis status.…”

Section: Maxillary Canine Impaction and Agenesis Statusmentioning

confidence: 99%

“…24 In the aforementioned studies, the possible confounding impact of gender on the results was not examined. To our knowledge, no data are available about tooth agenesis concomitant to MCI in Greece.…”

Section: Introductionmentioning

confidence: 98%

Maxillary canine impaction in orthodontic patients with and without agenesis: A cross-sectional radiographic study

Lempesi

Karamolegkou²,

Pandis

et al. 2013

The Angle Orthodontist

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Increased Occurrence of Dental Anomalies Associated with Second-Premolar Agenesis

Abstract: The results provide evidence that agenesis of other permanent teeth, microdontia, deciduous molar infraocclusion, and certain dental ectopias are the products of the same genetic mechanisms that cause second-premolar agenesis.

Cited by 51 publications

References 5 publications

Prevalence of Third Molar Agenesis: Associated Dental Anomalies in Non-Syndromic 5923 Patients

Prevalence of Third Molar Agenesis: Associated Dental Anomalies in Non-Syndromic 5923 Patients

Risk of developing palatally displaced canines in patients with early detectable dental anomalies: a retrospective cohort study

Maxillary canine impaction in orthodontic patients with and without agenesis: A cross-sectional radiographic study

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