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Four‐unit fixed dental prostheses replacing the maxillary incisors supported by two narrow‐diameter implants – a five‐year case series
Author(s) -
Moráguez Osvaldo,
Vailati Francesca,
Grütter Linda,
Sailer Irena,
Belser Urs C.
Publication year - 2017
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1111/clr.12895
Subject(s) - medicine , dentistry , implant , dental prosthesis , statistical significance , radiography , bleeding on probing , maxillary central incisor , orthodontics , surgery , periodontitis
Objectives (1) To determine the survival rate of 10 four‐unit fixed dental prostheses ( FDP s) replacing the four maxillary incisors, supported by 20 narrow‐diameter implants ( NDI s), (2) to assess the incidence of mechanical and biological complications, and (3) to evaluate bone level changes longitudinally after final FDP insertion. Materials and methods Ten patients (six women, four men), mean age 49.4 ± 12.6 years, were treated with a four‐unit anterior maxillary FDP (six screw‐retained; four cemented). Biological parameters, eventual technical complications, radiographic measurements, and study casts were assessed at 1 (baseline), 3, and 5 years after implant placement. A multilevel logistic regression test was performed on clinical parameters and bone level changes (significance level P < 0.05). Results The 5‐year implant and FDP survival rate was 100%. Mean modified plaque index (mPI) values were 0.03 and 0.02 at 3 and 5 years, significantly lower when compared to mPI (0.11 ± 0.31) at 1 year. Mean modified sulcus bleeding index (mSBI) was 0.08, 0.08, and 0.15 over time. Probing depth (PD) values were 1.57, 1.64, and 2.03 mm. Statistically significant differences were found between 1 vs. 5 year ( P = 0.0003) and 3 vs. 5 year ( P = 0.001). Keratinized mucosa (3.65 mm) remained stable during observation period. DIB mean values were 2.01 ± 0.34, 2.13 ± 0.13, and 2.17 ± 0.38 mm. Patient satisfaction based on visual analog scale revealed favorable fulfillment of overall treatment and esthetic expectations. Conclusions Two NDI s supporting a four‐unit FDP to replace the four missing maxillary incisors may be considered a predictable treatment modality.