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Oral Radiology

, Volume 34, Issue 3, pp 219–223 | Cite as

Age-related changes in the pulp chamber of maxillary and mandibular molars on cone-beam computed tomography images

  • Mikiko Sue
  • Takaaki Oda
  • Yoshihiko Sasaki
  • Ichiro Ogura
Original Article

Abstract

Objectives

Secondary dentine is laid on pulp chamber walls with increasing age, and decreases pulp chamber size. This study aimed to investigate age estimation on cone-beam computed tomography (CBCT) images for forensic science, and the relationship between age and pulp chamber area of maxillary and mandibular molars.

Methods

We reviewed the CBCT images of 316 first molars in 87 patients with dental lesions. The 87 patients were classified into three groups: younger, 11–28 years; middle-aged, 34–59 years; and older, 60–74 years. The relationship between age and pulp chamber area of maxillary and mandibular molars was evaluated.

Results

The mean pulp chamber area of maxillary molars was 8.4 ± 2.0, 4.4 ± 1.7, and 2.9 ± 0.9 mm2 in the younger, middle-aged, and older groups, respectively, (p = 0.028). The mean pulp chamber area of mandibular molars was 10.5 ± 2.3, 6.7 ± 2.2, and 3.7 ± 1.5 mm2 in the younger, middle-aged, and older groups, respectively, (p = 0.000). The mean pulp chamber area of mandibular molars was larger than that of maxillary molars in the younger (p = 0.000), middle-aged (p = 0.000), and older (p = 0.094) groups. The mean pulp chamber area of maxillary and mandibular molars was significantly correlated with age [Y = −0.142X + 11.582 (R 2 = 0.586, p = 0.000) and Y = −0.163X + 14.249 (R 2 = 0.609, p = 0.000), respectively].

Conclusions

These findings should be useful for diagnosis and treatment planning in dental practice and age estimation in forensic science.

Keywords

Age distribution Dental pulp cavity Molar Cone-beam computed tomography 

Notes

Compliance with ethical standards

Conflict of interest

Mikiko Sue, Takaaki Oda, Yoshihiko Sasaki, and Ichiro Ogura declare that they have no conflict of interest.

Human rights statement

All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1964 and later versions.

Informed consent

Informed consent was obtained from all patients for being included in the study.

References

  1. 1.
    Philippas GG, Applebaum E. Age factor in secondary dentin formation. J Dent Res. 1966;45:778–89.CrossRefPubMedGoogle Scholar
  2. 2.
    Morse DR, Esposito JV, Schoor RS. A radiographic study of aging changes of the dental pulp and dentin in normal teeth. Quintessence Int. 1993;24:329–33.PubMedGoogle Scholar
  3. 3.
    Kvaal SI, Kolltveit KM, Thomsen IO, Solheim T. Age estimation of adults from dental radiographs. Forensic Sci Int. 1995;74:175–85.CrossRefPubMedGoogle Scholar
  4. 4.
    Zaher JF, Fawzy IA, Habib SR, Ali MM. Age estimation from pulp/tooth area ratio in maxillary incisors among Egyptians using dental radiographic images. J Forensic Leg Med. 2011;18:62–5.CrossRefPubMedGoogle Scholar
  5. 5.
    da Silva EJ, Prado MC, Queiroz PM, Nejaim Y, Brasil DM, Groppo FC, et al. Assessing pulp stones by cone-beam computed tomography. Clin Oral Investig. 2016; doi: 10.1007/s00784-016-2027-5.
  6. 6.
    Jagannathan N, Neelakantan P, Thiruvengadam C, Ramani P, Natesan A, Herald JS, et al. Age estimation in an Indian population using pulp/tooth volume ratio of mandibular canines obtained from cone beam computed tomography. J Forensic Odontostomatol. 2011;29:1–6.PubMedGoogle Scholar
  7. 7.
    De Angelis D, Gaudio D, Guercini N, Cipriani F, Gibelli D, Caputi S, et al. Age estimation from canine volumes. Radiol Med. 2015;120:731–6.CrossRefPubMedGoogle Scholar
  8. 8.
    Ge ZP, Yang P, Li G, Zhang JZ, Ma XC. Age estimation based on pulp cavity/chamber volume of 13 types of tooth from cone beam computed tomography images. Int J Leg Med. 2016;130:1159–67.CrossRefGoogle Scholar
  9. 9.
    Ge ZP, Ma RH, Li G, Zhang JZ, Ma XC. Age estimation based on pulp chamber volume of first molars from cone-beam computed tomography images. Forensic Sci Int. 2015;253(133):e1–7.Google Scholar
  10. 10.
    Patil SR. Prevalence of and relationship between pulp and renal stones: a radiographic study. J Oral Biol Craniofac Res. 2015;5:189–92.CrossRefPubMedPubMedCentralGoogle Scholar
  11. 11.
    Goga R, Chandler NP, Oginni AO. Pulp stones: a review. Int Endod J. 2008;41:457–68.CrossRefPubMedGoogle Scholar
  12. 12.
    Pinchi V, Pradella F, Buti J, Baldinotti C, Focardi M, Norelli GA. A new age estimation procedure based on the 3D CBCT study of the pulp cavity and hard tissues of the teeth for forensic purposes: a pilot study. J Forensic Leg Med. 2015;36:150–7.CrossRefPubMedGoogle Scholar
  13. 13.
    Rai A, Acharya AB, Naikmasur VG. Age estimation by pulp-to tooth area ratio using cone-beam computed tomography: a preliminary analysis. J Forensic Dent Sci. 2016;8:150–4.CrossRefPubMedPubMedCentralGoogle Scholar

Copyright information

© Japanese Society for Oral and Maxillofacial Radiology and Springer Japan KK 2017

Authors and Affiliations

  • Mikiko Sue
    • 1
  • Takaaki Oda
    • 1
  • Yoshihiko Sasaki
    • 1
  • Ichiro Ogura
    • 1
  1. 1.RadiologyThe Nippon Dental University Niigata HospitalNiigataJapan

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