AIM: To conduct a meta-analysis of all the studies published in literature over the past three decades on the prevalence of @entity2681 in preschool @entity1 . MATERIALS AND METHODS: The Pubmed data base revealed only one systematic review on the prevalence of @entity3356 in @entity1 up to 5 years old. The search included works published from January 1982 to September 2012, using the following combinations of keywords: 1) " @entity2681 " AND " @entity1 "; 2) " @entity2681 in primary dentition"; 3) " @entity6661 "prevalence". The inclusion criteria for papers on @entity3356 were the deciduous dentition observed only on the palatal and buccal sides with the distinction of erosion, @entity6661 . We took into consideration only randomized control trials. We excluded articles not written in English, case reports, historical and forensic studies, in vitro and in vivo studies. In case of doubt and/or when an abstract was not available, the full text copy of the article was examined. The first search on Pubmed revealed 29 articles, the same found in the study of Kreulen [2010], however we selected only multicentric studies focused on @entity1 of age below 5 years old, in which only the primary dentition (D) and only anterior teeth (incisors) were considered. RESULTS: Both forest plot and scatter plot showed the prevalence of @entity2681 in primary dentition, and that older @entity1 had a more severe @entity2681 . CONCLUSION: @entity2681 should be considered a paediatric dentistry pathological entity as well as dental caries, and it can be related to more severe @entity262 such as @entity354 . In addition, taking care of these little @entity1 is important because they might suffer ipersentiveness, and also pulpal pathology caused by the typical structure of deciduous teeth, where the pulp cavity is wide and close to the dentine and the enamel.

Meta-analysis of the prevalence of XXXX in primary dentition.

@entity1 :: ('9606', 'Species') :: ['children', 'patients'] @entity2681 :: ('MESH:D014077', 'Disease') :: ['dental erosion', 'Dental erosion'] @entity3356 :: ('MESH:D057085', 'Disease') :: ['tooth wear'] @entity262 :: ('MESH:D034721', 'Disease') :: ['systemic diseases'] @entity6661 :: ('MESH:D019217', 'Disease') :: ['attrition and abrasion', 'dental" AND "attrition" AND'] @entity354 :: ('MESH:D005764', 'Disease') :: ['Gastroesophageal reflux disease']
@entity3356 :: (MESH:D057085,Disease) :: ['tooth wear']
