Evaluation of Clinical Parameters in Implant Maintenance Phase for Prevention of Peri-implantitis

Peri-implant marginal bone loss and systemic statin use: A retrospective cohort pilot study

OBJECTIVES

The aim was to analyze clinical parameters of peri-implantitis in human subjects exposed and non-exposed to use of systemic statins.

MATERIAL AND METHODS

This retrospective cohort pilot study compared patient records of 60 exposed individuals to 196 non-exposed individuals as of 2011 throughout 2017. Source of records were specialist and general dentistry clinics in Public Dental Service, Stockholm County, Sweden. Extent/severity of peri-implantitis and peri-implant bone loss were registered as well as intake of systemic statins. Background variables considered were bleeding on probing, bone-loss, age, gender, earlier periodontitis, prosthetic quality, and smoking. Stepwise linear and logistic regression analysis at the individual level was adopted in order to study the influence of statin use on the severity of peri-implantitis and the incidence of peri-implant bone loss. Results were considered statistically significant at p < 0.05.

RESULTS

Peri-implant bone loss was significantly correlated to use of statin after compensation for age and sex.

CONCLUSIONS

The results render an actual effect of statins on peri-implant bone loss plausible. Further research is warranted.

Change in the Dominant Side of Chewing as a Serious Factor for Adjusting the Prophylaxis Strategy for Implant-Supported Fixed Dental Prosthesis of Bounded Lateral Defects

OBJECTIVE

 The main purpose of this article is to study the effect of a change in the dominant side of chewing after prosthetics with fixed structures on implants on the main indicators of osseointegration, adaptation to dentures, and the clinical dental status of patients.

MATERIALS AND METHODS

 In a clinical trial, an analysis was made of the adaptation of 64 patients to intraosseous implant-supported fixed dentures and 56 apparently healthy volunteers. The examination complex included determination of the functionally dominant side of chewing, gnathodynamometry and electromyography indicators of masticatory muscles, and radiological osseointegration criteria. The overall treatment outcomes were evaluated using a visual analogue scale and an objective medical questionnaire, "Prognosis of Adaptation to Orthopedic Structures."

RESULTS

 Patients were divided into two subgroups: with a change in the dominant side of chewing after completion of orthopaedic treatment (40 cases) and without a change in the dominant side of chewing (24 cases). In the second subgroup of patients, in contrast to the first subgroup, relatively better indicators of gnathodynamometer and electromyography were observed. So, in the first group, gnathodynamometry indicators on the dominant side were 255.7 N and in the second group 225 N after 9 to 12 months. Electromyography indices amounted to (198.5 μV s) to (166.3 μV s) after 9 to 12 months. Bone density remained at the required level, and overall treatment outcomes were higher. Namely, the compact plate of the alveolar ridge was preserved, and the condition of the bone tissue around the implants testified to stable osseointegration. The participation of surface masticatory muscles in adaptation of patients to intraosseous implant-supported fixed orthopaedic structures and the necessity and importance of changing the dominant chewing side for the general outcomes of orthopaedic treatment have been discussed.

CONCLUSIONS

 It has been established that a change in the functionally dominant chewing side is accompanied by relatively unstable indicators of chewing function, which is combined with increased loads on the installed prostheses during 3 to 6 months of adaptation. This must be taken into account when planning an individual patient adaptation complex for dental orthopaedic structures.

Assessment of correlation of periodontitis in teeth adjacent to implant and peri- implantitis

AIMS

The present study was conducted to determine correlation between peri-implantitis and periodontitis in adjacent teeth.

MATERIALS AND METHODS

The present study was conducted on 58 patients with 84 dental implants. They were divided into two groups, group I (50) was with peri-implantitis and group II (34) was without it. In all patients, probing depth (PD), gingival recession (GR), and clinical attachment loss (CAL) was calculated around implant, adjacent to implant and on contralateral side. Obtained data were statistically analyzed using statistical software IBM SPSS Statistics for Windows, Version 21.0. Armonk, NY: IBM Corp with one-way analysis of variance.

RESULTS

Males were 30 with 52 dental implants and females were 28 with 32 dental implants. CAL was 5.82 ± 0.52 in group I and 3.62 ± 0.63 in group II (P = 0.001) around implants. PD was 4.28 ± 1.26 in group I and 2.20 ± 0.52 in group II around adjacent teeth (P = 0.002). PD around contralateral teeth was significant (P = 0.05) in group I (3.18 ± 1.01) and group II (2.71 ± 0.73).

CONCLUSION

Periodontitis has negative effect on implant success. Teeth adjacent to dental implant plays an important role in deciding the success or failure of implant. Maintenance of periodontal health is of paramount importance for successful implant therapy.

Antiseptic sealant and a nanocoated implant-abutment interface improve the results of dental implantation

BACKGROUND

Clinical measures and implant design innovation to improve primary osseointegration and reduce the bacterial contamination of the peri-implant area are intended to reduce the incidence of late inflammatory complications in dental implantation.

PURPOSE

To study the effect of nanostructured coating and antiseptic sealant on the outcomes of dental implantation.

MATERIALS AND METHODS

Ninety-six individuals were clinically supervised. In the first group (Screw Ti + sealant), a special antiseptic sealant matrix was used; the same sealant was used with nanocoated implants in the second group (Nanocoat + sealant), and the conventional treatment protocol was used in the control group (Screw Ti). Patients were evaluated longitudinally during treatment and rehabilitation phases with clinical examinations, radiography, periodontal pathogen detection, and patient experience surveys.

RESULTS

For patients who received a nanocoated implant and an antiseptic sealant (Nanocoat + sealant), relatively better hygienic indices were observed; there was less contamination with periodontal pathogens, bone density remained at the required level, and the overall results of treatment were better.

CONCLUSIONS

Using a matrix for sealing the dental implant-abutment interface with a nanostructured surface provides reliable results regarding stable osseointegration and clinical and patient-reported outcomes of treatment success.