VitaminsDietary SupplementsDental PorcelainProsthesis ColoringPotassium CompoundsAluminum SilicatesVitamin B ComplexAluminum OxideMineralsCeramicsFolic AcidPaulliniaPreconception CareDental PolishingPliabilityBiotinTrace ElementsMaterials TestingDental MaterialsColorPrenatal CareVitamin EPantothenic AcidSymportersPregnancyTanzaniaDental Stress AnalysisVitamin AAscorbic AcidNeural Tube DefectsMaternal Nutritional Physiological Phenomena2,3-Diketogulonic AcidSurface PropertiesDouble-Blind MethodAvitaminosisNutrition Policybeta CaroteneFood, FortifiedVitamin B 12Nutritional StatusRisk FactorsStomatitis, AphthousPregnancy Complications, InfectiousHomocysteineMicronutrientsConfounding Factors (Epidemiology)DietRiboflavinThiamineTabletsVitamin DRiskCleft LipInfant, NewbornQuestionnairesNutritional RequirementsUnited StatesPlacebosCongenital AbnormalitiesProspective StudiesCohort StudiesDrug CombinationsAffectCleft PalatePregnancy ComplicationsMethylenetetrahydrofolate Reductase (NADPH2)AntioxidantsZincPregnancy Trimester, SecondPremature BirthVitamin D DeficiencyCase-Control StudiesFollow-Up StudiesIronLogistic ModelsInfant, Small for Gestational AgeAlcohol DrinkingPregnancy OutcomeEthnic GroupsHealth BehaviorCaco-2 CellsHIV InfectionsOdds RatioBody Mass IndexRisk AssessmentProportional Hazards ModelsPrenatal Exposure Delayed EffectsBirth WeightNeoplasmsDenmarkMultivariate AnalysisIncidenceDose-Response Relationship, DrugSocioeconomic FactorsTreatment OutcomeSmokingAgingGestational AgeCross-Sectional StudiesBody Weight