Evaluation of Radiomorfometric Indexes in Kennedy Class I and Class II Cases

Year 2022, Volume: 11 Issue: 3, 245 - 251, 19.09.2022

Fulya Basmacı , Berna Turgut , Emine Sebnem Kursun Çakmak , Pervin Demir

https://doi.org/10.54617/adoklinikbilimler.1138862

Abstract

PURPOSE: To evaluate the effect of edentulism on radiomorphometric indices by measuring the panoramic mandibular index (PMI), mandibular cortical index (MCI) and mental index (MI) values bilaterally in Kennedy class I and II cases. MATERIAL AND METHODS: PMI, MCI and MI values were measured bilaterally on a total of 128 digital panoramic radiographs, 64 of which belonged to class I and 64 to class II patients. Two independent group comparisons were made with an independent two-sample t-test or Pearson Chi-square test. The appropriate tests were chosen out of two dependent t test and McNemar Bowker to compare left and right or edentulous and dentate cases. The relationship between age and MCI was analyzed using the Spearman rank correlation coefficient, and the relationship between the PMI and MI variables was analyzed using the Pearson correlation coefficient. (p<0.05) in the statistical analyzes were performed in both directions. RESULTS: In Kennedy class I cases, no difference was observed between MCI scores and PMI and MI values on the right and left sides (p>0.05). The distribution of MCI in the edentulous and dentate regions differed in Kennedy class II cases (p=0.002). Variable values of PMI and MI obtained from the dentate and edentulous sides were also found to differ (p<0.05). In class I and II comparison, MI value was found to be significantly higher in class I (p=0.003). CONCLUSION: MCI, PMI and MI values differ according to the presence or absence of teeth.

Keywords

Panoramic radiography, Mental index, Panoramic mandibular index, Radiomorphometric index, Mandibular cortical index

Kennedy Sınıf I ve Sınıf II Olgularında Radyomorfometrik İndekslerin Değerlendirilmesi

Abstract

AMAÇ: Kennedy sınıf I ve II olgularında panoramik mandibular indeks (Panoramic Mandibular Index;PMI), mandibular kortikal indeks (Mandibular Cortical Index;MCI) ve mental indeks (Mental Index;MI) değerlerini bilateral olarak ölçerek dişsizliğin radyomorfometrik indeksler üzerindeki etkisini değerlendirmektir. GEREÇ VE YÖNTEM: 64 adet sınıf I, 64 adet sınıf II olmak üzere toplam 128 dijital panoramik radyograf üzerinde PMI, MCI ve MI değerleri bilateral olarak ölçüldü. Bağımsız iki grup karşılaştırması bağımsız iki örnek t testi veya Pearson Ki-kare testi ile yapıldı. Sınıf I’ de sağ-sol ve Sınıf II’ de dişsiz-dişli taraf karşılaştırmalarında bağımlı iki ölçüm t testi ve McNemar-Bowker testlerinden uygun olan yöntem kullanıldı. Yaş ile MCI arasındaki ilişki Spearman sıra korelasyon katsayısı, PMI ve MI değişkenleriyle ilişki Pearson korelasyon katsayısı ile incelendi. (p<0.05) değeri istatistiksel olarak anlamlı kabul edildi. BULGULAR: Kennedy sınıf I vak’alarında sağ ve sol tarafta MCI skorlaması ile PMI ve MI değerleri arasında fark gözlenmemiştir (p>0.05). Kennedy sınıf II vak’alarında dişli ve dişsiz bölgede MCI dağılımı farklılık göstermiştir (p=0.002). Dişli ve dişsiz taraftan elde edilen PMI ve MI değişken değerlerinin de farklılık gösterdiği tespit edilmiştir (p<0.05). Sınıf I ve II karşılaştırmasında MI değeri sınıf I’de anlamlı derecede yüksek bulunmuştur (p=0.003). SONUÇ: MCI, PMI ve MI değerleri diş varlığı veya yokluğu durumuna göre farklılık göstermektedir.

Keywords

Mandibular kortikal indeks, Mental indeks, Panoramik mandibular indeks, Panoramik radyografi, Radiomorfometrik indeks

References

• 1. Bianchi A, Sanfilippo F. Osteoporosis: The effect on mandibular bone resorption and therapeutic possibilities by means of implant protheses. Int J Periodontics Restorative Dent 2002; 22:231-9.
• 2. Horner K, Devlin H. The relationship between mandibular bone mineral density and panoramic radiographic measurements. J Dent 1998; 26: 337-43.
• 3.Peker İ, Toraman AM, Yıldırım Biçer AZ. Total ve parsiyel dişsiz çenelerin panoramik radyografi kullanılarak değerlendirilmesi. J Dent Fac Atatürk Uni 2014; 24: 241-5.
• 4.Nakamoto T, Taguchi A, Ohtsuka M, Suei Y, Fujita M, Tsuda M, et al. A computer-aided diagnosis system to screen for osteoporosis using dental panoramic radiographs. Dentomaxillofac. Radiol 2008; 37:274-285.
• 5.Ledgerton D, Horner K, Devlin H, Worthington H. Radiomorphometric indices of the mandible in a British female population. Dentomaxillofac Radiol 1999; 28: 173-81.
• 6.Klemetti E, Kolmakow S, Kroger H. Pantomography in assessment of the osteoporosis risk group. Scand J Dent Res 1994; 102: 68-72.
• 7.Benson BW, Prihoda TJ, Glass BJ. Variations in adult cortical bone mass as measured by a panoramic mandibular index. Oral Surg Oral Med Oral Pathol 1991; 71: 349- 56.
• 8.Wowen NV. General and oral aspects of osteoporosis:a review. Clin Oral Investig 2001;5:71-82.
• 9.Horner K, Devlin H. The relationships between two indices of mandibular bone quaity and bone mineral density measured by dual energy X-ray absorptiometry. Dentomaxillofac Radiol 1998; 27:17-21.
• 10.Gulsahi A, Yuzugullu B, İmirzalioğlu P, Genç Y. Assessment of panoramic radiomorphometric indices of Turkısh patients in different age groups,gender and dental status. Dentomaxillofac Radiol 2008; 37:288-92.
• 11.Mansour S, Al Ghamdi AS, Javed F, Marzouk H, Khan EA. Panoramic radiomorphometric indices as reliable parameters in predicting osteoporosis. Am J Med Sci. 2013; 346:473-8.
• 12.Ateş S, Gülsün B. Effects of removable dental prostheses on mandibular bone density in postmenopausal osteoporotic patiens. International Dental Research 2021; 11:206-9.
• 13.R Core Team R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. 2021;URL https://www.R-project.org/.
• 14.Gamer M, Lemon J, Fellows I, Singh P. irr: Various coefficients of interrater reliability and agreement. R package version 0.84.1. 2019; https://CRAN.R-project.org/package=irr.
• 15.Koo TK, Li MY. A Guideline of selecting and reporting intraclass correlation coefficients for reliability research. J Chiropractic Medicine 2016; 15: 155-63.
• 16.Cohen J. Weighted kappa: nominal scale agreement with provision for scaled disagreement or partial credit. Psychol Bull 1968; 70:213–20.
• 17.Dağıstan S, Bilge OM. Comparison of antegonial index, mental index, panoramic mandibular index and mandibular cortical index values in the panoramic radiographs of normal males and male patients with osteoporosis. Dentomaxillofac Radiology 2010; 39: 290–94.
• 18.Önem E, Güneri P, Bir Y. Diş hekimliğinde kemik kalitesinin belirlenmesi: radyografik yöntemler ve yorumları. Ondokuz Mayıs Üniv Diş Hekim Fak Derg 2007; 8:190-9.
• 19.Dutra V, Devlin H, Susin C. Mandibular bone remodeling in adults: evaluation of panoramic radiographs. Dentomaxillofac. Radiol. 2004; 33:323-8.
• 20.Larheim TA, Svanaes DB, Johannesen S. Reproducibility of radiographs with the orthopantomograph 5:tooth length assessment. Oral Surg Oral Med Oral Pathol 1984; 58:736-41.
• 21.Yasa Y, Büyük SK, Genc E.Comparision of mandibular cortical bone among obese, owerweight and normal weight adolescents using panoramic mandibular index and mental index.Clin Oral Invest 2020;24:2919-24.
• 22.Leite AF, Figueiredo PTS, Guia CM, Melo NS, Paula AP. Correlations between seven panoramic radiomorphometric indices and bone mineral density in postmenopausal women. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010;109:449-56.
• 23.Akay G, Akarslan Z, Karadag Ö, Güngör K. Does tooth loos in the mandibular posterior region have an effect on the mental index and panoramic mandibular index. Eur.Oral Res 2019;53:56-61.
• 24.Dutra V, Yang J, Devlin H, Susin C. Radiomorphometric indices and their relation to gender, age, and dental status. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2005; 99: 479-84.
• 25.Raustia AM, Salonen MA, Pyhtinen J. Evaluation of masticatory muscles of edentulous patients by computed tomography and electromyography. J Oral Rehabil 1996; 23:11–16.
• 26.Zlataric DK, Celebic A. Clinical bone densitometric evaluation of the mandible in removable denture wearers dependent on the morphology of the mandibular cortex. J Prosthet Dent 2003; 90: 86-91.