IADR Abstract Archives
What’s worse for a child’s teeth: non-nutritive sucking behaviours (NNSB) or sub-optimal breastfeeding?
Objectives: Establish whether NNSB or sub-optimal breastfeeding are associated with malocclusions in the primary dentition, and compare the associations they may have.
Methods: The systematic review of association (etiology) methodology, developed by the Joanna Briggs Institute (JBI), was followed. The criteria of population, exposure and outcome were used to generate the review questions. Studies with healthy participants in the primary dentition and no history of orthodontic or surgical treatment were considered for inclusion. Studies with participants with a cleft lip/palate; other craniofacial deformities; any syndrome; or maxillofacial trauma were excluded. Studies evaluating 1 or more of the following types of exposures were considered for inclusion: NNSB; pacifier or digit sucking; breastfeeding; exclusive/non-exclusive; short/long duration. Increased overjet, sagittal relationship (canine/molar teeth), posterior crossbite (x-bite), and anterior open bite (AOB) were assessed as outcomes. Prospective and retrospective (cohort) studies, case-control studies and analytical cross-sectional studies were considered for inclusion. Reviews, text- and opinion-based articles, conference abstracts, case reports, case-series, and descriptive cross-sectional studies were excluded. A 3-step search strategy was used that included electronic searches across MEDLINE, EMBASE, SCOPUS and CINAHL. Full-text articles were assessed, and data extracted independently and in duplicate by 2 JBI-trained and accredited reviewers, using standardised instruments from JBI SUMARI. Meta-analyses were performed when there were sufficient number of studies with homogenous exposure and outcome measures. Across-study heterogeneity precluded use of a single systematic review with sub-group analyses to synthesise the results of the component studies. Therefore, two separate reviews were conducted.
Results: 20 studies were included across 2 separate systematic reviews. 2 were prospective; the remainder were cross-sectional in design. There is evidence to indicate that NNSBs carry a greater risk for the development of posterior x-bite and AOB in the primary dentition when compared to absence of breastfeeding.
Conclusions: NNSB is associated with greater prevalence and risk for development of posterior x-bite and AOB compared to absence of breastfeeding.
Methods: The systematic review of association (etiology) methodology, developed by the Joanna Briggs Institute (JBI), was followed. The criteria of population, exposure and outcome were used to generate the review questions. Studies with healthy participants in the primary dentition and no history of orthodontic or surgical treatment were considered for inclusion. Studies with participants with a cleft lip/palate; other craniofacial deformities; any syndrome; or maxillofacial trauma were excluded. Studies evaluating 1 or more of the following types of exposures were considered for inclusion: NNSB; pacifier or digit sucking; breastfeeding; exclusive/non-exclusive; short/long duration. Increased overjet, sagittal relationship (canine/molar teeth), posterior crossbite (x-bite), and anterior open bite (AOB) were assessed as outcomes. Prospective and retrospective (cohort) studies, case-control studies and analytical cross-sectional studies were considered for inclusion. Reviews, text- and opinion-based articles, conference abstracts, case reports, case-series, and descriptive cross-sectional studies were excluded. A 3-step search strategy was used that included electronic searches across MEDLINE, EMBASE, SCOPUS and CINAHL. Full-text articles were assessed, and data extracted independently and in duplicate by 2 JBI-trained and accredited reviewers, using standardised instruments from JBI SUMARI. Meta-analyses were performed when there were sufficient number of studies with homogenous exposure and outcome measures. Across-study heterogeneity precluded use of a single systematic review with sub-group analyses to synthesise the results of the component studies. Therefore, two separate reviews were conducted.
Results: 20 studies were included across 2 separate systematic reviews. 2 were prospective; the remainder were cross-sectional in design. There is evidence to indicate that NNSBs carry a greater risk for the development of posterior x-bite and AOB in the primary dentition when compared to absence of breastfeeding.
Conclusions: NNSB is associated with greater prevalence and risk for development of posterior x-bite and AOB compared to absence of breastfeeding.