Evaluation of panoramic radiomorphometric indices in Indian population

Abstract

Objecitves: Radiomorphometric indices on dental radiographs can be used for screening of osteoporosis. However population-specific normative data is sparse. Aim was to establish radiomorphometric indices in Indian population and to determine role of age, gender and dentition on these indices. Materials and Methods: Cross sectional study was undertaken from January 2010 to December 2010. OPGs of 80 samples were divided into four age groups. Mental index, panoramic mandibular index, mandibular cortical index, antegonial index were measured. Relationships with age and dentition were analysed using Statistical Package for the Social Sciences SPSS12.0. Student t-test, one way analysis of variance, Chi square test was used to find the statistical significance. P value < 0.05 was considered to be significant. Results:In most of the study population endosteal margins of the mandibular cortex were even and sharp on both sides i.e.C1 appearance except in 60-69 years females who showed increased tendency of lacunar cortical defects i.e. C2 appearance. No correlation between dentition and mandibular cortical index (MCI), mental index (MI), panoramic mandibular index (PMI) & Antegonial index (AI) (p value 0.583, 0.059, 0.491 respectively). Population's mean of AI, MI, and PMI among males were 3.33, 3.97, 0.33 respectively and among females were 3.06, 3.64, and 0.32 respectively. (p value for AI, MI, PMI were 0.048, 0.028,0.037 respectively). Conclusions: All indices negatively correlated with age. There was a general downward trend with age until sixth decade, when values declined sharply. No statistical significance was found between AI, MI, and PMI and dentition.

Reference values of Orthopantomographic indices for early detection of low bone mineral density in Indian population

“… Males (n = 105) Females (n = 90) Total (n = 195) A a B b p value A a B b p value A a B b p value MI Z score −0.06 (1.21) −0.53 (1.07) * 0.001 0.53 (1.22) 0.38 (0.82) 0.001 0.30 (1.29) 0.38 (0.88) 0.001 PMI Z score 0.25 (1.25) −0.85 (0.85) * 0.001 0.25 (1.31) −0.87 (0.76) * 0.001 0.25 (1.5) −0.87 (0.90) 0.001 GI Z score −0.33 (1.16) NA NA −0.28 (1.29) NA NA −0.31 (1.35) NA NA AIZ score 0.20 (1.94) −1.48 (1.7) 0.001 0.08 (2.24) −0.9 (1.78) * 0.001 −0.12 (2.04) −1.13 (1.64) 0.001 a Current study references. b Pal and Amrutesh references 14 . …”

“…The mean age of participants in dataset one to develop references was 23.5 ± 2.5 years. In the previous study conducted by Pal et al, 14 was performed on a small sample size aged 30–70 years were included; hence there was a need to conduct a study in young adults aged 20–30 yrs. The current study was done on a larger sample size to increase the study's power and overcome the limitations similar to previous studies.…”

“…Two sets of participants were recruited for the study. The sample size was derived for data set one based on previous studies conducted by (Pal and Amrutesh in 2013), 14 (Bajoria AA and others) 9 2015. As per earlier studies, 20% of the Indian population have osteoporosis.…”

Evaluation of jawbone morphology and bone density indices in panoramic radiographs of selective serotonin reuptake inhibitor users: a preliminary study

“…[31][32][33][34][35][36][37][38][39][40][41][42] Skeletal BMD is also correlated to mandibular BMD, 45 which is similarly reflected by panoramic indices. 47 As jawbone BMD impacts local microarchitecture, 48 its loss is suggested as a risk factor for alveolar bone loss in periodontits 49 although the not conclusively. Despite their limitations, panoramic indices mentioned may serve as screening tools for the effect of SSRIs on jawbones and BMD due to their widespread availability.…”

Nilai ketebalan kortikal mandibula pada anak dan remaja terinfeksi HIV

“…Laki-laki menunjukkan nilai MI yang jauh lebih tinggi daripada wanita. 19 Sedangkan nilai ketebalan kortikal mandibula lebih tinggi pada remaja sejalan dengan hasil penelitian Gomez dan De Lima pada tahun 2008 bahwa tingkat pertumbuhan mandibula terbesar terjadi pada remaja pada puncaknya di masa pubertas. 20 Pernyataan ini perlu dibuktikan lebih lanjut melalui dengan lebih banyak sampel.…”