Abstract : Introduction: The first permanent molars heve thebiggesth dental morbidity and mortality of all permanent teeth. The main aim was to evaluate of the most common dental problems and procedures that are performed on the first permanent molars. Material and method: examination was performed in three private dental offices, two from urban and one from rural region, over a period of 2 years.The data was obtained by using dental charts from the patients and by the ambulatory register for performed interventions. Total number of interventions of the remaining teeth was detected, which interventions are most performed and and which of the four first permanent molars have the highest morbidity. Results: on the first permanent molars were made 10.98% from the total number of interventions. 61.33 %of the subjects possessed all four first permanent molars . The left mandibular molar has the highest number of interventions performed from all first permanent molars. the most common reason for dental interventions on the first permanent molar is caries and its complications. Conclusion: In a very small number of subjects all first permanent molars were not affected by any disease. Removal of caries is the most common dental intervention on the first permanent molars.

Keyword : First molar, first permanent molar, interventions, tooth morbidity, tooth mortality