The study aimed to evaluate the survival and failure rate, in the short-
and medium-term, in addition to its relationship with risk factors, in implants
placed by postgraduate students of the Master of Medicine, Surgery, and Oral
Implantology course from the University of Barcelona. The success of dental
implants is related to both the surgical technique and a series of factors that
can contribute to their failure over the short term. Insufficient crestal bone
height or width can require regenerative surgeries that sometimes occur
simultaneously with implant placement, and can lead to complications, such as
soft tissue dehiscence, infections, or insufficient final bone quality. The
study was designed by including 192 patients with 422 implants placed between
2015 and 2018. Variables of implant failure were evaluated and related. Failure
was split into early failure and late failure. Descriptive statistical
parameters were used to evaluate the variables, which included standard
deviation and percentage distribution. The chi-squared test was used to compare
the qualitative data, with p = 0.05 considered as a significant value,
expressed in frequency distribution tables. Qualitative data were compared
using the chi-squared test, taking p ≤ 0.05 as a significant value. The
comparison of quantitative variables was carried out using the Student’s t-test
for independent samples. The survival rate in a period of 6 months to 3 years
was 97.87%. The mean age of the patients was (54.5 ± 13), and the largest
number of implants were placed in the 51–60 age range. The failure rate was 2.13%
(N = 9), 6 failed early and 3 failed after definitive prosthetic loading, with
a p value < 0.0001. When comparing the failures according to their location
in the anterior/posterior sector of the arch, the anterior sector showed
statistically significant results (p = 0.027). Evaluating this risk factor in
isolation is difficult, as other factors are in play that when taken in
combination, lead to a worse prognosis of success and survival for implants.
These include the patient’s systemic condition and smoking habit. Failed
implants had a statistically significant relationship when they were placed in
the anterior sector and were performed in the early stage. The results showed
that the survival and failure rates of implants placed by postgraduate students
are similar to those obtained by experienced professionals, being an effective
and predictable therapy for partially or edentulous patients.
Author (s) Details
Arianna
Graterol-Duran
Faculty of Medicine and Health Sciences, School of Dentistry, University of
Barcelona, 08907 Barcelona, Spain.
Raùl Ayuso-Montero
Oral Health and Masticatory System Group-IDIBELL, Faculty of Medicine and
Health Sciences, School of Dentistry, Odontological Hospital University of
Barcelona, University of Barcelona, 08907 Barcelona, Spain.
Sonia Egido-Moreno
Faculty of Medicine and Health Sciences, School of Dentistry, University of
Barcelona, 08907 Barcelona, Spain.
Mónica
Blazquez-Hinarejos
Faculty of Medicine and Health Sciences, School of Dentistry, University of
Barcelona, 08907 Barcelona, Spain.
Antonio Marí-Roig
Department of Clinical Sciences, Faculty of Medicine and Health Sciences,
University of Barcelona, 08907 Barcelona, Spain.
José López-López
Oral Health and Masticatory System Group-IDIBELL, Faculty of Medicine and
Health Sciences, School of Dentistry, Odontological Hospital University of
Barcelona, University of Barcelona, 08907 Barcelona, Spain.
Please see the book here:- https://doi.org/10.9734/bpi/mmrnp/v10/2469