J Korean Assoc Oral Maxillofac Surg.  2014 Apr;40(2):61-67. 10.5125/jkaoms.2014.40.2.61.

Comparison of the reproducibility of results of a new peri-implantitis assessment system (implant success index) with the Misch classification

• Abrishami
• Sabour S
• Nasiri M
• Amid R
• Kadkhodazadeh M

• KMID: 1960956
• DOI: http://doi.org/10.5125/jkaoms.2014.40.2.61

Abstract

OBJECTIVES
The present study was conducted to determine the reproducibility of peri-implant tissue assessment using the new implant success index (ISI) in comparison with the Misch classification.
MATERIALS AND METHODS
In this descriptive study, 22 cases of peri-implant soft tissue with different conditions were selected, and color slides were prepared from them. The slides were shown to periodontists, maxillofacial surgeons, prosthodontists and general dentists, and these professionals were asked to score the images according to the Misch classification and ISI. The intra- and inter-observer reproducibility scores of the viewers were assessed and reported using kappa and weighted kappa (WK) tests.
RESULTS
Inter-observer reproducibility of the ISI technique between the prosthodontists-periodontists (WK=0.85), prosthodontists-maxillofacial surgeons (WK=0.86) and periodontists-maxillofacial surgeons (WK=0.9) was better than that between general dentists and other specialists. In the two groups of general dentists and maxillofacial surgeons, ISI was more reproducible than the Misch classification system (WK=0.99 versus WK non-calculable, WK=1 and WK=0.86). The intra-observer reproducibility of both methods was equally excellent among periodontists (WK=1). For prosthodontists, the WK was not calculable via any of the methods.
CONCLUSION
The intra-observer reproducibility of both the ISI and Misch classification techniques depends on the specialty and expertise of the clinician. Although ISI has more classes, it also has higher reproducibility than simpler classifications due to its ability to provide more detail.

Keyword

Peri-implantitis; Classification; Reproducibility; Bone loss

MeSH Terms

Classification*
Dentists
Humans
Peri-Implantitis*
Reproducibility of Results*
Specialization

Figure

• 

  Fig. 1 A slide with clinical and radiographic views and required clinical data representing a case of class I Misch and class IV implant success index (PPD: probing pocket depth, SL: soft tissue level, BOP: bleeding on probing, BL: bone loss).

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