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20 January 2023 : Clinical Research  

[In Press] A Study of 42 Partially Edentulous Patients with Single-Crown Restorations and Implants to Compare Bone Loss Between Crestal and Subcrestal Endosseous Implant Placement

Shailesh Jain ORCID logo1ABCDEF, Khurshid Mattoo2ACDEG, Imran Khalid3CDEFG, Fawaz A.H. Baig3ADEFG, Mohammad Zahir Kota3CDEFG, Muhammad Ishfaq3ADEFG, Mohammed Ibrahim3ACEFG, Sahba Hassan1BCDEF

DOI: 10.12659/MSM.939225

Med Sci Monit In Press; DOI: 10.12659/MSM.939225  

Available online: 2023-01-20, In Press, Corrected Proof

Publication in the "In-Press" formula aims at speeding up the public availability of the pending manuscript while waiting for the final publication. The assigned DOI number is active and citable. The availability of the article in the Medline, PubMed and PMC databases as well as Web of Science will be obtained after the final publication according to the journal schedule

Abstract

BACKGROUND
The purpose of the study was to evaluate the influence of dental implant placement at different bone levels upon the resultant postoperative peri-implant bone loss.
MATERIAL AND METHODS
Forty-two partially edentulous patients seeking implant-supported single-crown restorations were screened followed by segregation into 2 groups (GP), GP E (equicrestal) and GP S (subcrestal) (n=21 each). Sixty endosseous implants (30 each) (Adin Tourage-S, Israel), size 3.5/8 and 4/10 mm for mandibles, were placed using a 2-stage surgical procedure. At 4 to 6 months, straight abutments were attached followed by restoration (Vita Zahnfabrik, Germany). Crestal bone levels (mesial/distal) of implant fixtures were assessed at 5 time intervals (after surgery, and at 3, 6, 9, and 12 months) using digital radiography. Means and standard deviations were calculated, following which the differences were statistically analyzed using ANOVA at P value of <0.05.
RESULTS
The mean annual bone loss for GP S (1.96 mm) was higher than GP E (1.10 mm). At all studied time intervals, the bone loss for implants in GP S was higher than in GP E (P<0.05). Between time intervals, lowest bone loss was observed on the distal side in GP E (0.11 mm/6-9 month) and the highest bone loss was observed on the distal side of GP S (0.6 mm/9-12 month). Differences in the means between the 2 groups on mesial and distal sides were statistically significant at all time intervals (P<0.05).
CONCLUSIONS
Subcrestal implant placement was associated with more bone loss than when implants are placed at the crestal level.

Keywords: Alveolar Bone Loss; Dental Implant-Abutment Design; Dental Implants, Single-Tooth; Osseointegration; Peri-Implantitis

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01 January 2023 : Editorial  

Editorial: Current Status of Two Adjuvanted Malaria Vaccines and the World Health Organization (WHO) Strategy to Eradicate Malaria by 2030

Dinah V. Parums
Science Editor, Medical Science Monitor, International Scientific Information, Inc., Melville, NY, USA

DOI: 10.12659/MSM.939357

Med Sci Monit 2023; 29:e939357

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26 Jan 2023 : Editorial  

Editorial: The XBB.1.5 (‘Kraken’) Subvariant of Omicron SARS-CoV-2 and its Rapid Global Spread

Med Sci Monit In Press; DOI: 10.12659/MSM.939580  

20 Jan 2023 : Clinical Research  

A Study of 42 Partially Edentulous Patients with Single-Crown Restorations and Implants to Compare Bone Los...

Med Sci Monit In Press; DOI: 10.12659/MSM.939225  

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750