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Evaluation of the prevalence of impacted permanent second molars on panoramic radiographs

Yıl 2025, Cilt: 30 Sayı: 3, 363 - 373, 25.09.2025
https://doi.org/10.21673/anadoluklin.1554801

Öz

Aim: The objective of this study was to assess the prevalence of impaction in permanent second molars.

Methods: Panoramic images from 10.000 patients aged 15 and older, who presented to our clinic between January 2021 and January 2022, were meticulously examined. Inclusion criteria comprised 78 impacted second molars observed in 53 patients. The classification of second molars was conducted based on impaction type and angulation.

Results: The overall prevalence of second molar impaction was determined to be 0.53%, with 39.6% identified in female patients and 60.4% in male patients. Type 1 impaction was the most frequently detected and constituted 50%, while Type 2 and Type 3 impactions were detected at rates of 34.6% and 15.4%, respectively. Impaction types of mandibular second molar did not differ according to gender, side, or distance from the mandibular first molar distal surface to the anterior border of the ramus.

Conclusion: The prevalence of impacted permanent second molars was notably limited. Despite the infrequency of impaction, quick identification is critical for optimal treatment timing and the avoidance of associated consequences.

Kaynakça

  • Andreasen JO, Petersen JK, Laskin DMJ. Textbook and color atlas of tooth impactions: diagnosis treatment prevention. 1997.
  • la Monaca G, Cristalli MP, Pranno N, et al. First and second permanent molars with failed or delayed eruption: Clinical and statistical analyses. Am J Orthod Dentofacial Orthop. 2019;156(3):355-64.
  • Santosh P. Impacted mandibular third molars: Review of literature and a proposal of a combined clinical and radiological classification. Ann Med Health Sci Res. 2015;5(4):229-34.
  • Bondemark L, Tsiopa J. Prevalence of ectopic eruption, impaction, retention and agenesis of the permanent second molar. Angle Orthod. 2007;77(5):773-8.
  • Magnusson C, Kjellberg H. Impaction and retention of second molars: diagnosis, treatment and outcome: a retrospective follow-up study. Angle Orthod. 2009;79(3):422-7.
  • Abate A, Cavagnetto D, Fama A, Matarese M, Bellincioni F, Assandri F. Efficacy of operculectomy in the treatment of 145 cases with unerupted second molars: A retrospective case–control study. Dent J. 2020;8(3):65.
  • Fardi A, Kondylidou-Sidira A, Bachour Z, Parisis NA, Tsirlis AT. Incidence of impacted and supernumerary teeth-a radiographicStudy in a North Greek population. 2011.
  • Hou R, Kong L, Ao J, et al. Investigation of impacted permanent teeth except the third molar in Chinese patients through an X-ray study. J Oral Maxillofac Surg. 2010;68(4):762-7.
  • Izadikhah I, Cao D, Zhao Z, Yan B. Different management approaches in impacted maxillary canines: an overview on current trends and literature. J Contemp Dent Pract. 2020;21(3):326-36.
  • Fu PS, Wang JC, Wu YM, et al. Impacted mandibular second molars. Angle Orthod. 2012;82(4):670-5.
  • Cassetta M, Altieri F, Di Mambro A, Galluccio G, Barbato E. Impaction of permanent mandibular second molar: A retrospective study. Med Oral Patol Oral Cir Bucal. 2013;18(4):e564.
  • Kuang Q, Zhou H, Hong H, et al. Radiographic Features of Mandibular Second Molars with Eruption Disturbances: A Retrospective Study. J Clin Med. 2023;12(8):2798.
  • Frazier-Bowers SA, Simmons D, Wright JT, Proffit WR, Ackerman JL. Primary failure of eruption and PTH1R: the importance of a genetic diagnosis for orthodontic treatment planning. Am J Orthod Dentofacial Orthop. 2010;137(2):160.e1-161.
  • Grippaudo C, Cafiero C, D’Apolito I, Ricci B, Frazier-Bowers SA. Primary failure of eruption: Clinical and genetic findings in the mixed dentition. Angle Orthod. 2018;88(3):275-282.
  • Kiani M, Pankevych A, Lokes K, Skikevich M. Circumstance for removal of impacted mandibular second and third molars teeth. Вісник проблем біології і медицини. 2016;1(4):360-5.
  • Orhan A, Cesur E, Bezgin T, Orhan K. Knowledge and Attitudes of Paediatric Dentists in Turkey Regarding Cone Beam Computed Tomography (CBCT). Cumhuriyet Dent J. 2021;24(3):206-15.
  • Kadesjö N. Evaluation of Cone Beam Computed Tomography with Respect to Effective Radiation Dose and Diagnostic Properties: Karolinska Institutet (Sweden); 2020.
  • Cederhag J. Radiographic imaging in relation to the mandibular third molar: tooth characteristics, modality choice, optimization, and absorbed dose: Malmö University Press; 2023.
  • Soganci AE, Akbulut AS, Sahin G. A novel method for measuring tooth angulation in permanent mandibular second molars with delayed tooth eruption. J Orthod. 2021;48(3):260-7.
  • Liversidge HM. Tooth eruption and timing. A companion to dental anthropology. 2015:159-71.
  • Jayatileke A, Nawarathna LS, Ravishanker N, et al. New standards for eruption time and sequence of permanent dentition in Sri Lankan children. Commun Stat Case Stud Data Anal Appl. 2019;5(2):92-100.
  • Müftüoğlu Ö, Özdiler O, Memikoğlu UT. Daimi mandibular ikinci molar dişlerin gömülülük prevalansı: retrospektif çalışma. A.Ü. Diş Hek Fak Derg. 2019;46(3):145-50.
  • Varpio M, Wellfelt B. Disturbed eruption of the lower second molar: clinical appearance, prevalence, and etiology. ASDC J Dent Child. 1988;55(2):114-8.
  • Baccetti T. Tooth anomalies associated with failure of eruption of first and second permanent molars. Am J Orthod Dentofacial Orthop. 2000;118(6):608-10.
  • Suri L, Gagari E, Vastardis H. Delayed tooth eruption: pathogenesis, diagnosis, and treatment. A literature review. Am J Orthod Dentofacial Orthop. 2004;126(4):432-45.
  • Raghoebar G, Boering G, Vissink A, Stegenga B. Eruption disturbances of permanent molars: a review. J Oral Pathol Med. 1991;20(4):159-66.
  • Evans R. Incidence of lower second permanent molar impaction. Br J Orthod. 1988;15(3):199-203.
  • Bjerklin K, Kurol J, Valentin J. Ectopic eruption of maxillary first permanent molars and association with other tooth and developmental disturbances. Eur J.Orthod. 1992;14(5):369-75.
  • Garib DG, Peck S, Gomes SC. Increased occurrence of dental anomalies associated with second-premolar agenesis. Angle Orthod. 2009;79(3):436-41.
  • Garib DG, Alencar BM, Lauris JRP, Baccetti T. Agenesis of maxillary lateral incisors and associated dental anomalies. Am J Orthod Dentofacial Orthop. 2010;137(6):732. e1-. e6.
  • Baccetti T. A controlled study of associated dental anomalies. Angle Orthod. 1998;68(3):267-74.
  • Turley PK. The management of mesially inclined/impacted mandibular permanent second molars. J World Fed Orthod. 2020;9(3):S45-S53.

Gömülü daimi ikinci molar diş prevelansının panoramik radyograflarda değerlendirilmesi

Yıl 2025, Cilt: 30 Sayı: 3, 363 - 373, 25.09.2025
https://doi.org/10.21673/anadoluklin.1554801

Öz

Amaç: Bu çalışmanın amacı daimi ikinci molar dişlerin gömülü kalma sıklığını değerlendirmektir.

Yöntemler: Ocak 2021 ile Ocak 2022 tarihleri arasında kliniğimize başvuran 15 yaş ve üzeri 10.000 hastanın panoramik görüntüleri değerlendirilmiştir. Çalışmada dâhil etme kriterlerini sağlayan, 53 hastada toplam 78 gömülü ikinci molar diş kullanılmıştır. İkinci molar dişlerinin sınıflandırılması gömülülük tipine ve açılanmasına göre yapılmıştır.

Bulgular: İkinci molar diş gömülülüğünün genel prevalansı %0,53 olarak saptanmıştır. Gömülü vakaların %39,6’sı kadın, %60,4’ü ise erkek hastalarda görülmüştür. En yaygın gömülülük tipi %50 oranında Tip 1 olarak belirlenmiştir. Tip 2 ve Tip 3 gömülülük sıklıkları ise sırasıyla %34,6 ve %15,4 olarak tespit edilmiştir. Alt ikinci molar dişin gömülü kalma tiplerinin cinsiyet, taraf ya da mandibular birinci molar dişin distal yüzeyinden ramusun ön kenarına kadar olan mesafeye göre anlamlı bir farklılık göstermediği bulunmuştur.

Sonuç: Daimi ikinci molar dişlerin gömülülük prevalansı oldukça nadirdir. Ancak sık gözlenmemesine rağmen, optimal tedavi zamanlaması ve ilişkili sonuçlardan kaçınmak için erken teşhis kritik öneme sahiptir.

Kaynakça

  • Andreasen JO, Petersen JK, Laskin DMJ. Textbook and color atlas of tooth impactions: diagnosis treatment prevention. 1997.
  • la Monaca G, Cristalli MP, Pranno N, et al. First and second permanent molars with failed or delayed eruption: Clinical and statistical analyses. Am J Orthod Dentofacial Orthop. 2019;156(3):355-64.
  • Santosh P. Impacted mandibular third molars: Review of literature and a proposal of a combined clinical and radiological classification. Ann Med Health Sci Res. 2015;5(4):229-34.
  • Bondemark L, Tsiopa J. Prevalence of ectopic eruption, impaction, retention and agenesis of the permanent second molar. Angle Orthod. 2007;77(5):773-8.
  • Magnusson C, Kjellberg H. Impaction and retention of second molars: diagnosis, treatment and outcome: a retrospective follow-up study. Angle Orthod. 2009;79(3):422-7.
  • Abate A, Cavagnetto D, Fama A, Matarese M, Bellincioni F, Assandri F. Efficacy of operculectomy in the treatment of 145 cases with unerupted second molars: A retrospective case–control study. Dent J. 2020;8(3):65.
  • Fardi A, Kondylidou-Sidira A, Bachour Z, Parisis NA, Tsirlis AT. Incidence of impacted and supernumerary teeth-a radiographicStudy in a North Greek population. 2011.
  • Hou R, Kong L, Ao J, et al. Investigation of impacted permanent teeth except the third molar in Chinese patients through an X-ray study. J Oral Maxillofac Surg. 2010;68(4):762-7.
  • Izadikhah I, Cao D, Zhao Z, Yan B. Different management approaches in impacted maxillary canines: an overview on current trends and literature. J Contemp Dent Pract. 2020;21(3):326-36.
  • Fu PS, Wang JC, Wu YM, et al. Impacted mandibular second molars. Angle Orthod. 2012;82(4):670-5.
  • Cassetta M, Altieri F, Di Mambro A, Galluccio G, Barbato E. Impaction of permanent mandibular second molar: A retrospective study. Med Oral Patol Oral Cir Bucal. 2013;18(4):e564.
  • Kuang Q, Zhou H, Hong H, et al. Radiographic Features of Mandibular Second Molars with Eruption Disturbances: A Retrospective Study. J Clin Med. 2023;12(8):2798.
  • Frazier-Bowers SA, Simmons D, Wright JT, Proffit WR, Ackerman JL. Primary failure of eruption and PTH1R: the importance of a genetic diagnosis for orthodontic treatment planning. Am J Orthod Dentofacial Orthop. 2010;137(2):160.e1-161.
  • Grippaudo C, Cafiero C, D’Apolito I, Ricci B, Frazier-Bowers SA. Primary failure of eruption: Clinical and genetic findings in the mixed dentition. Angle Orthod. 2018;88(3):275-282.
  • Kiani M, Pankevych A, Lokes K, Skikevich M. Circumstance for removal of impacted mandibular second and third molars teeth. Вісник проблем біології і медицини. 2016;1(4):360-5.
  • Orhan A, Cesur E, Bezgin T, Orhan K. Knowledge and Attitudes of Paediatric Dentists in Turkey Regarding Cone Beam Computed Tomography (CBCT). Cumhuriyet Dent J. 2021;24(3):206-15.
  • Kadesjö N. Evaluation of Cone Beam Computed Tomography with Respect to Effective Radiation Dose and Diagnostic Properties: Karolinska Institutet (Sweden); 2020.
  • Cederhag J. Radiographic imaging in relation to the mandibular third molar: tooth characteristics, modality choice, optimization, and absorbed dose: Malmö University Press; 2023.
  • Soganci AE, Akbulut AS, Sahin G. A novel method for measuring tooth angulation in permanent mandibular second molars with delayed tooth eruption. J Orthod. 2021;48(3):260-7.
  • Liversidge HM. Tooth eruption and timing. A companion to dental anthropology. 2015:159-71.
  • Jayatileke A, Nawarathna LS, Ravishanker N, et al. New standards for eruption time and sequence of permanent dentition in Sri Lankan children. Commun Stat Case Stud Data Anal Appl. 2019;5(2):92-100.
  • Müftüoğlu Ö, Özdiler O, Memikoğlu UT. Daimi mandibular ikinci molar dişlerin gömülülük prevalansı: retrospektif çalışma. A.Ü. Diş Hek Fak Derg. 2019;46(3):145-50.
  • Varpio M, Wellfelt B. Disturbed eruption of the lower second molar: clinical appearance, prevalence, and etiology. ASDC J Dent Child. 1988;55(2):114-8.
  • Baccetti T. Tooth anomalies associated with failure of eruption of first and second permanent molars. Am J Orthod Dentofacial Orthop. 2000;118(6):608-10.
  • Suri L, Gagari E, Vastardis H. Delayed tooth eruption: pathogenesis, diagnosis, and treatment. A literature review. Am J Orthod Dentofacial Orthop. 2004;126(4):432-45.
  • Raghoebar G, Boering G, Vissink A, Stegenga B. Eruption disturbances of permanent molars: a review. J Oral Pathol Med. 1991;20(4):159-66.
  • Evans R. Incidence of lower second permanent molar impaction. Br J Orthod. 1988;15(3):199-203.
  • Bjerklin K, Kurol J, Valentin J. Ectopic eruption of maxillary first permanent molars and association with other tooth and developmental disturbances. Eur J.Orthod. 1992;14(5):369-75.
  • Garib DG, Peck S, Gomes SC. Increased occurrence of dental anomalies associated with second-premolar agenesis. Angle Orthod. 2009;79(3):436-41.
  • Garib DG, Alencar BM, Lauris JRP, Baccetti T. Agenesis of maxillary lateral incisors and associated dental anomalies. Am J Orthod Dentofacial Orthop. 2010;137(6):732. e1-. e6.
  • Baccetti T. A controlled study of associated dental anomalies. Angle Orthod. 1998;68(3):267-74.
  • Turley PK. The management of mesially inclined/impacted mandibular permanent second molars. J World Fed Orthod. 2020;9(3):S45-S53.
Toplam 32 adet kaynakça vardır.

Ayrıntılar

Birincil Dil İngilizce
Konular Ağız, Diş ve Çene Radyolojisi, Diş Hekimliği (Diğer)
Bölüm ORJİNAL MAKALE
Yazarlar

Ali Altındağ 0000-0001-8549-5193

Büşra Öztürk 0000-0003-2202-7442

Serkan Bahrilli 0009-0006-3730-7235

Yayımlanma Tarihi 25 Eylül 2025
Gönderilme Tarihi 23 Eylül 2024
Kabul Tarihi 20 Mart 2025
Yayımlandığı Sayı Yıl 2025 Cilt: 30 Sayı: 3

Kaynak Göster

Vancouver Altındağ A, Öztürk B, Bahrilli S. Evaluation of the prevalence of impacted permanent second molars on panoramic radiographs. Anadolu Klin. 2025;30(3):363-7.

13151 This Journal licensed under a CC BY-NC (Creative Commons Attribution-NonCommercial 4.0) International License.