Objective: to evaluate the quality of oral health care in Primary Health Care services in Pernambuco state, Brazil, 2014. Methods: this was an ecological health evaluation study based on the Donabedian model, involving secondary data from the 2 nd cycle of the National Program for Improving Access and Quality of Primary Health Care (PMAQ-AB); comparison between the structure, process and outcome variables was done using the Kruskal-Wallis test (p<0.050); variables showing statistical significance (p<0.05) were portrayed through thematic and spatial dependence maps. Results: the standard of quality in the municipalities for the 'Structure' dimension gained better scores than the 'Work process' dimension; correlations were identified between the indicators for dental urgency, supervised tooth brushing coverage and treatments completed, in quality strata related to the work process of the Oral Health teams. Conclusion: organization of the work process was seen to be a determining factor in the impact on some indicators of service use.