Keywords :
Early childhood caries, Saliva, Total protein concentration
Citation Information :
Thimmegowda U, Pai S, Chikkanarasaiah N, Nanjappa A. Estimation and Association of Total Protein Concentration with Early Childhood Caries in 3–6-year-old Children: A Randomized Clinical Trial. Int J Clin Pediatr Dent 2024; 17 (1):36-40.
Background and objective: Caries is a common problem witnessed in children, early childhood caries (ECC) is the most predominant chronic disease which not only leads to distress and pain but also poor quality of life, thus affecting the overall well-being of children. Salivary protein plays a vital part in monitoring health status or disease. It was stated that the salivary proteins could regulate the equilibrium of oral health, preserve a stable ecosystem, and constrain the growth of cariogenic bacteria.
Aim: The aim of this study is to estimate the total protein concentration in saliva and its correlation to ECC.
Materials and methods: A total of 20 patients with ECC in the age-group of 3–6 years were selected as the experimental group and 20 patients without caries for the control group. Unstimulated saliva samples were collected and subjected to spectrophotometry. The data obtained was subjected to statistical analysis. Independent student's t-test was used for the comparison of mean salivary pH between the caries group and the control group. Mann–Whitney test was used for a comparison of salivary total protein concentrations between the two groups.
Results: The mean pH of the carious group showed a statistically significant slightly lower value than that of the noncarious group. On the contrary, the mean total protein concentration of the carious group presented a statistically significant higher value than that of the noncarious group. Age-wise comparison of mean salivary proteins in the carious group and the noncarious group showed an increase in the protein concentration in the children aged 4 years or younger.
Conclusion: Based on the results of this study, it can be concluded that there is a strong association between the total protein concentration in saliva and ECC. There exists a significant increase in the total protein concentration in children with ECC. As age increases, total protein concentration decreases with age.
Clinical significance: Total protein concentration and particular protein estimation and quantification help us in assessing the risk of caries in children at the earliest and prevention of caries through preventive measures. Estimation of total salivary protein concentration in children can be a marker for ECC in children.
Çolak H, Dülgergil ÇT, Dalli M, et al. Early childhood caries update: a review of causes, diagnoses, and treatments. J Nat Sci Biol Med 2013;4(1):29–32. DOI: 10.4103/0976-9668.107257
Chen W, Jiang Q, Yan G, et al. The oral microbiome and salivary proteins influence caries in children aged 6 to 8 years. BMC oral health 2020;20(1):295. DOI: 10.1186/s12903-020-01262-9
Mandel ID. The role of saliva in maintaining oral homeostasis. J Am Dent Assoc 1988;119(2):298–304. DOI: 10.14219/jada.archive.1989.0211
Marcotte H, Lavoie MC. Oral microbial ecology and the role of salivary immunoglobulin A. Microbiol Mol Biol Rev 1998;62(1):71–109. DOI: 10.1128/MMBR.62.1.71-109.1998
Maikala RV. Modified Beer's Law–historical perspectives and relevance in near-infrared monitoring of optical properties of human tissue. Int J Ind Ergon 2010;40(2):125–134. DOI: 10.1016/j.ergon.2009.02.011
Zhou P, Regenstein J. Determination of total protein content in gelatin solutions with the Lowry or Biuret assay. J Food Sci 2006;71(8):C474–C479. DOI: 10.1111/j.1750-3841.2006.00151.x
Hay DI, Smith DJ, Schluckebier SK, et al. Relationship between concentration of human salivary statherin and inhibition of calcium phosphate precipitation in stimulated human parotid saliva. J Dent Res 1984;63(6)857–863. DOI: 10.1177/00220345840630060901
Hemadi AS, Huang R, Zhou Y, et al. Salivary proteins and microbiota as biomarkers for early childhood caries risk assessment. Int J Oral Sci 2017;9(11):e1. DOI: 10.1038/ijos.2017.35
Psoter WJ, Spielman AL, Gebrian B, et al. Effect of childhood malnutrition on salivary flow and pH. Arch Oral Biol 2008;53(3):231–237. DOI: 10.1016/j.archoralbio.2007.09.007
Tao R, Jurevic RJ, Coulton KK, et al. Salivary antimicrobial peptide expression and dental caries experience in children. Antimicrob Agents Chemother 2005;49(9):3883–3888. DOI: 10.1128/AAC.49.9.3883-3888.2005
Grondin JA, Kwon YH, Far PM, et al. Mucins in intestinal mucosal defense and inflammation: learning from clinical and experimental studies. Front Immunol 2020;11:2054. DOI: 10.3389/fimmu.2020.02054
Liu J, Duan Y. Saliva: a potential media for disease diagnostics and monitoring. Oral oncol 2012;48(7):569–577. DOI: 10.1016/j.oraloncology.2012.01.021
O'Doherty JP, Deichmann R, Critchley HD, et al. Neural responses during anticipation of a primary taste reward. Neuron 2002;33(5):815–826. DOI: 10.1016/s0896-6273(02)00603-7
Dawes C. Salivary flow patterns and the health of hard and soft oral tissues. J Am Dent Assoc 2008;139(Suppl):18S–24S. DOI: 10.14219/jada.archive.2008.0351
Cunha-Cruz J, Scott J, Rothen M, et al. Salivary characteristics and dental caries: evidence from general dental practices. J Am Dent Assoc 2013;144(5):e31–e40. DOI: 10.14219/jada.archive.2013.0159
Seseogullari-Dirihan R, Mutluay MM, Pashley DH, et al. Is the inactivation of dentin proteases by crosslinkers reversible? Dent Mater 2017;33(2):e62–e68. DOI: 10.1016/j.dental.2016.09.036
Yang Y, Li Y, Lin Y, et al. Comparison of immunological and microbiological characteristics in children and the elderly with or without dental caries. Eur J Oral Sci 2015;123(2):80–87. DOI: 10.1111/eos.12172
Van Anwarong JW. Clinical evaluation of three adhesive systems in class V non-carious lesions. Dent Mater 2000;16(4):285–291. DOI: 10.1016/s0109-5641(00)00019-1
Banderas-Tarabay JA, Zacarias-D'oleire IG, Garduno-Estrada R, et al. Electrophoretic analysis of whole saliva and prevalence of dental caries. A study in Mexican dental students. Arch Med Res 2002;33(5):499–505. DOI: 10.1016/s0188-4409(02)00395-8
de Farias DG, Bezerra AC. Salivary antibodies, amylase and protein from children with early childhood caries. Clin Oral Investig 2003;7(3):154–157. DOI: 10.1007/s00784-003-0222-7