PMID- 33981395
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220423
IS  - 1989-5488 (Print)
IS  - 1989-5488 (Electronic)
IS  - 1989-5488 (Linking)
VI  - 13
IP  - 5
DP  - 2021 May
TI  - Proximal contact alterations between implant-supported restorations and adjacent 
      teeth in the posterior region: A 3-month prospective study.
PG  - e479-e486
LID - 10.4317/jced.57802 [doi]
AB  - BACKGROUND: Interproximal contact loss (ICL) is a multifactorial implant 
      complication. The aims of this prospective clinical study were to evaluate 
      proximal contact alterations between implant-supported fixed prostheses (IFPs) 
      and adjacent teeth and to identify potential contributing factors. MATERIAL AND 
      METHODS: This study was conducted from April to September 2019 at the Department 
      of Prosthodontics. Forty-three patients (23 females and 20 males, age range 
      31-70) treated with 43 posterior IFPs were recruited for this study. All proximal 
      contacts (64) were checked visually and radiographically. Proximal contact 
      tightness (PCT) was clinically evaluated using dental floss and measured during 
      removal of a calibrated 0.05 mm thick metal strip previously inserted into the 
      proximal area. Mesial and distal PCT were measured at restoration insertion (T0), 
      1-month follow-up (T1), and 3-month follow-up (T2). ICL was assessed in relation 
      to the patients' age, gender, smoking habits, implant system, proximal contact 
      position, jaw position and restoration type of the implant prostheses. The 
      significance level was set at P value </= 0.05. RESULTS: The PCTs between fixed 
      implant prostheses and adjacent teeth decreased significantly between T0 and T2. 
      Restoration type affected the loss of interproximal contact at the mesial 
      (free-end restorations; P = 0.008) and distal aspects (P< 0.001), whereas implant 
      system affected only the distal aspects of the proximal contacts (P = 0.002). 
      CONCLUSIONS: Proximal contact tightness between fixed implant prostheses and 
      adjacent teeth decreased over the 3-month observation period. Contact loss 
      between fixed implant prostheses and adjacent teeth may be influenced by 
      restoration type and implant system. Key words:Adjacent teeth, dental implants, 
      implant complication, implant fixed prostheses, interproximal contact loss, 
      proximal contact strength, proximal contact tightness.
CI  - Copyright: (c) 2021 Medicina Oral S.L.
FAU - Mehanna, Solange
AU  - Mehanna S
AD  - DDS, MSc. Clinical Instructor, Department of Prosthodontics, Faculty of Dental 
      Medicine, Saint Joseph University, Beirut, Lebanon.
FAU - Habre-Hallage, Pascale
AU  - Habre-Hallage P
AD  - DDS, MSc, PhD. Professor, Director of the post-graduate program of fixed 
      prosthodontics, Former Head of the Department of Prosthodontics, Faculty of 
      Dental Medicine, Saint Joseph University, Beirut, Lebanon.
LA  - eng
PT  - Journal Article
DEP - 20210501
PL  - Spain
TA  - J Clin Exp Dent
JT  - Journal of clinical and experimental dentistry
JID - 101603132
PMC - PMC8106938
COIS- Conflicts of interest None.
EDAT- 2021/05/14 06:00
MHDA- 2021/05/14 06:01
PMCR- 2021/05/01
CRDT- 2021/05/13 06:26
PHST- 2020/09/02 00:00 [received]
PHST- 2020/12/20 00:00 [accepted]
PHST- 2021/05/13 06:26 [entrez]
PHST- 2021/05/14 06:00 [pubmed]
PHST- 2021/05/14 06:01 [medline]
PHST- 2021/05/01 00:00 [pmc-release]
AID - 57802 [pii]
AID - 10.4317/jced.57802 [doi]
PST - epublish
SO  - J Clin Exp Dent. 2021 May 1;13(5):e479-e486. doi: 10.4317/jced.57802. eCollection 
      2021 May.