J Adv Prosthodont.  2017 Jun;9(3):224-231. 10.4047/jap.2017.9.3.224.

Long-term evaluations of teeth and dental implants during dental maintenance period

• Yoon DL
• Kim YG
• Cho JH
• Lee JM
• Lee SK

• KMID: 2382610
• DOI: http://doi.org/10.4047/jap.2017.9.3.224

Abstract

PURPOSE
This study was designed to evaluate the teeth and dental implants during dental maintenance therapy over 3 years in different conditions after periodontal and dental prosthetic treatment.
MATERIALS AND METHODS
166 patients received maintenance therapy. 59 patients were treated with 2% minocycline-HCl ointment as local drug delivery (LDD) (L group) and 107 patients were treated without LDD (NL group). Clinical data was collected in maintenance period for evaluation. Patients were classified into groups depending on the application of LDD with maintenance therapy, the type of dental treatment before maintenance period (Pre-Tx), the frequency (F-MT), and regularity (R-MT) of maintenance therapy.
RESULTS
The numbers of lost teeth (N-teeth, P=.003) and newly placed dental implants (N-implants, P=.022) are significantly different according to Pre-Tx. F-MT among patients who received surgical dental treatment before maintenance period showed statistical differences in N-teeth (P=.041), but not in N-implants (P=.564). All of the patients in L group showed high F-MT (F-MT1). In NL group, there were no statistical differences in N-teeth or N-implants according to F-MT or R-MT. In F-MT1 group, application of LDD made N-teeth significantly different from both Pre-Tx groups while no significant difference could be found in N-implant. Independent t-test and one-way ANOVA were selected for statistical analysis.
CONCLUSION
The regular maintenance therapy and LDD can be effective for teeth during maintenance period. It is not only pharmacological efficacy in decreasing bacterial species that makes LDD a useful adjunct. Application of LDD also motivates patients to take adequate check-ups in the aspects of both frequency and regularity.

Keyword

Long-Term Care; Minocycline; Tooth Loss

MeSH Terms

Dental Implants*
Humans
Long-Term Care
Minocycline
Tooth Loss
Tooth*
Dental Implants
Minocycline

Figure

• 

  Fig. 1 Independent-Samples Kruskal-Wallis test of number of lost teeth (N-teeth) and number of newly placed dental implants (N-implants) according to the frequency of maintenance therapy (F-MT), in patients who received surgical and nonsurgical pre-treatment (F-MT1, more than once in 6 months / F-MT2, once in a year / F-MT3, less than once in 2 years). (A) N-teeth according to F-MT, in patients who received surgical pre-treatment (B) N-implants according to F-MT, in patients who received surgical pre-treatment (C) N-teeth according to F-MT, in patients who received nonsurgical pre-treatment (D) N-implants according to F-MT, in patients who received nonsurgical pre-treatment. Significant statistical difference can be solely noticed in N-teeth of patients who received surgical pre-treatment (A, P = .041).

• 

  Fig. 2 Independent t-test of number of lost teeth (N-teeth, (A)) and number of newly placed dental implants (N-implants, (B)) according to application of 2% minocycline-HCl ointment as local drug delivery (LDD) (Appl-LDD), in patients who received surgical pre-treatment (L group, LDD applied / NL group, LDD not-applied). Also independent-samples Mann-Whiteney U test of N-teeth (C) and N-implants (D) according to application of LDD, in patients who received nonsurgical pre-treatment. This analysis is solely based on the patients in F-MT1 group. Significant statistical differences can be found in N-teeth according to the application of LDD ((A),(C)) regardless of the type of pre-treatment (P < .05).

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