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208 rev port estomatol med dent cir maxilofac. 2017;58(4):205-211 A

B

Figure 2. Antibiotic preference for patients with Sensitivity to Penicillin

prescribed by 34.7% and 33.7% of the dentists, respectively There were no significant differences in the prescribed
(Figure 2). number of days for antibiotic treatment in relation to age, sex,
We observed that most professionals prescribed antibiotics academic degree, or experience/time dedicated to endodontics
in cases of necrotic pulp, acute apical periodontitis, swelling, practice as expressed by the number of treatments performed
and other moderate/severe symptoms (91.6%). per week (Table 3).
In cases of necrotic pulp and chronic apical periodontitis No correlations were found between antibiotic prescription
where the patient was asymptomatic but had a sinus tract, and sex (p=0.570), clinical experience (p=0.399), number of
45.3% of the dentists prescribed antibiotics (Table 2). In cases endodontic treatments performed per week (p=0.199) or hav-
of necrotic pulp and chronic apical periodontitis with no swell- ing a post -graduation (p=0.147), a master (p=0.611) or a PhD
ing and no other symptoms, antibiotics were prescribed by degree (p=0.931). A tendency for younger dentists to prescribe
15.8% of the dentists. The percentages of antibiotic prescrip- more antibiotics was observed (p=0.079), although without
tion for other pulpal and periapical conditions are described reaching statistical significance.
in Table 2.

Table 2. Conditions and percentage of antibiotic Table 3. Prescribed number of days for antibiotic
prescription treatment according to sex, age groups, academic
degrees and experience/time dedicated to practice
Antibiotics endodontics
Situation prescription
(%) N.º of
days P value
Irreversible pulpitis; moderate/severe preoperative 15.8
symptoms Sex
Men (n=42) 7.83 ± 0.66 0.793
Irreversible pulpitis with acute apical periodontitis; 44.2 Women (n=53) 7.79 ± 0.82
moderate/severe preoperative symptoms
Necrotic pulp with chronic apical periodontitis; no Age
swelling, no/mild preoperative symptoms 15.8 24 -35 years (n=48) 7.92 ± 0.58 0.310
36 -45 years (n=32) 7.75 ± 0.67
Necrotic pulp with acute apical periodontitis; no more than 45 years (n=15) 7.60 ± 1.24
swelling; moderate /severe preoperative symptoms 41.2
Academic degree
Necrotic pulp with chronic apical periodontitis; DDS Degree (n=43) 7. 72 ± 0.62 0.291
presence of sinus tract; no/mild preoperative 45.3 Master or PhD (n=52) 7.88 ± 0.62
symptoms
Number of treatments per week
Necrotic pulp with acute apical periodontitis; swelling
present; moderate /severe preoperative symptoms 91.6 ≤5 (n=31) 7.81 ± 0.79 0.999
6 -10 (n=43) 7.81 ± 0.76
Endodontic retreatment 9.5 > 10 (n=21) 7.81 ± 0.68