First and second permanent molars with failed or delayed eruption: Clinical and statistical analyses

Monaca, Gerardo La; Cristalli, Maria Paola; Galluccio, Gabriella; Annibali, Susanna; Pippi, Roberto

doi:10.1016/j.ajodo.2018.09.020

Cited by 23 publications

(35 citation statements)

References 34 publications

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“…A recent retrospective study [ 45 ] evaluated several possible treatments of retained second molars. Even if all second molars treated with operculectomy reached the treatment objectives, no statistically significant conclusion was drawn due to the limited number of cases treated with it (10).…”

Section: Discussionmentioning

confidence: 99%

“…The limit of our study is the analysis of only two treatment methods. However, most of the already published studies evaluated four or more different treatments but failed to obtain statistical significance because of a smaller sample size per each treatment option [ 38 , 45 ]. Further studies are needed in the future on more treatment groups that analyze a higher sample size.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Efficacy of Operculectomy in the Treatment of 145 Cases with Unerupted Second Molars: A Retrospective Case–Control Study

et al. 2020

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The aim of this study is to assess whether operculectomy in patients with retained second molars eases spontaneous tooth eruption in respect to untreated controls. Two hundred and twenty-two patients with delayed eruption of at least one second molar were selected from the archives of the Department of Orthodontics, Milan, Italy. Eighty-eight patients, 40 males and 48 females (mean age 14.8 ± 1.3 years), met the inclusion criteria. Records were then divided into case and control groups. The case group consisted of patients that underwent removal of the overlaying mucosa over second molars (i.e., operculectomy) and the control group consisted of subjects who retained their operculum over an unerupted second molar and were followed for one year without performing any treatment. A total of 145 impacted second molars were considered (75 cases, 70 controls). A risk ratio with 95% confidence interval was used to compare the prevalence of eruption in the two groups. Spontaneous eruption occurred in 93.3% of cases in the operculectomy group (70/75), while in the control group, 10% teeth erupted spontaneously (7/70). Spontaneous eruption in the upper arch occurred in 95.2% of cases among treated patients (40 out of 42), while in the lower arch, spontaneous eruption occurred in 90.9% of cases (30 out of 33). Spontaneous eruption of the upper second molars in the control group occurred in 8.5% of cases (3 out of 35), while in the lower arch, it occurred in 8.5% (3 out of 35). Operculectomy can ease the spontaneous eruption of retained second molars and reduce the chances of inclusion.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Efficacy of Operculectomy in the Treatment of 145 Cases with Unerupted Second Molars: A Retrospective Case–Control Study

et al. 2020

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“…For V. P., in case the orthodontic uprighting is not achieved, surgical repositioning of the second molars should be considered [21].…”

Section: Treatment Alternativesmentioning

confidence: 99%

Multiple Dental Inclusion in Monozygotic Twins with Congenital Visual Impairment

Galluccio

Impellizzeri

Stefano

et al. 2020

Case Reports in Dentistry

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The study presents two monozygotic twins (MZ) with multiple impacted teeth, affecting the upper canines and lower second molars, as well as congenital aniridia. The clinical aspect of the upper canines is peculiar because of the different positions—palatal in one and buccal in the other twin. Studies reporting different scenarios of impaction in monozygotic twins can contribute more data to the debate on tooth eruption aetiology and more so in this case because of the association with a genetic panocular disease. Patients’ Concerns. The patients were referred by a general dentist, who diagnosed the presence of multiple inclusions. Diagnostic Study. Both patients showed severe malocclusion, classified as grade 5 of the Index of Orthodontic Treatment Need (IOTN). The MZ showed class I malocclusion, upper and lower crowding, and impacted lower right and left second molars. A Dentascan was prescribed for the canine impaction. The impaction of the upper canine was palatal of 2.3 in one of the MZ and buccal of 1.3 in the other one. The same altered pattern of eruption of the lower second molars was identified in both twins. The proposed treatment plan contemplated orthodontic surgical recovery of the impacted elements, followed by orthodontic treatment with multibracket appliance after the extraction of the first four premolars, given the crowding entity. The use of a retraction spring action was chosen for the recovery of the lower second molars. Many aspects of the possible genetic aetiology of tooth impaction are still under discussion. The study of diseases in twins offers decisive information. Finally, the possibility that alterations in the eruptive pattern of the dental elements may be associated with other congenital problems broadens the range of investigations related to the possible aetiological causes of the inclusions in humans.

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“…[ 3 ] discussed the many terms used to describe disorders of tooth eruption and pointed out the considerable confusion over their usage. To be consistent with several studies performed on prevalence and treatment outcomes the terms impaction, primary retention, and secondary retention will be used in this paper [ 2 , [4] , [5] , [6] , [7] ]. Impaction is defined as the failure of tooth eruption due to a physical obstacle in the eruption path, or an abnormal eruption path of the tooth [ 3 , 4 , 7 , 8 ].…”

Section: Definitions/terminologymentioning

confidence: 99%

“…Inclusion is infrequently used to describe a tooth that remains inside the bone [ 2 ]. Retention or inclusion have been used to indicate the molar before or after apical root closure, when the tooth was still able to erupt or not [ 7 ].…”

Section: Definitions/terminologymentioning

confidence: 99%

The management of mesially inclined/impacted mandibular permanent second molars

Turley

2020

Journal of the World Federation of Orthodontists

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Mesially impacted mandibular second molars are a common occurrence in orthodontic practices, especially those using the lingual arch or lip bumper for alleviating anterior crowding. Horizontally impacted second molars, on the other hand, occur so infrequently that most practitioners have limited experience in treating such a patient. Because of this there is little consensus on the management of these cases. As opposed to vertically impacted molars that may be associated with ankylosis or other factors preventing eruption, the mesially angulated, horizontally impacted mandibular second molar usually has eruption potential, because its impaction is more commonly due to lack of space and/or abnormal eruption path. Hence, orthodontic uprighting shows the most promise and can commonly be done without extracting the third molar or surgically exposing the impacted second molar. Modern clinicians have at their disposal a myriad of biomechanical choices that can be used to successfully reposition these teeth and enable finishing with an optimal occlusion.

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First and second permanent molars with failed or delayed eruption: Clinical and statistical analyses

Cited by 23 publications

References 34 publications

Efficacy of Operculectomy in the Treatment of 145 Cases with Unerupted Second Molars: A Retrospective Case–Control Study

Efficacy of Operculectomy in the Treatment of 145 Cases with Unerupted Second Molars: A Retrospective Case–Control Study

Multiple Dental Inclusion in Monozygotic Twins with Congenital Visual Impairment

The management of mesially inclined/impacted mandibular permanent second molars

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