Immediate Loading of Single Implants in the Anterior Maxilla: A 1-Year Prospective Clinical Study on 34 Patients

Abstract

Purpose To present the outcomes of immediately loaded single implants placed in the anterior maxilla. Methods Over a 2-year period, all patients referred to a private clinic were considered for enrolment in this study. Inclusion criteria were single-tooth placement in postextraction sockets or healed sites of the anterior maxilla. All implants were immediately loaded and followed for a period of 1 year after the placement of definitive crowns. The outcome measures were implant stability, survival, and success. Results 34 patients were selected and 43 tapered implants with a knife-edge thread design and a nanostructured, calcium-incorporated surface (Anyridge®, Megagen, Gyeongsang, Korea) were installed. Two implants were not sufficiently stable at placement (ISQ < 60) and were considered failed for immediate loading; 41 implants had an ISQ ≥ 60 at placement and were immediately loaded. One year after the placement of definitive crowns, no implant failures were reported, for a survival rate of 100%. No biological complications were found, but 2 implants had their prosthetic abutments loosened: the implant success rate was 95.2%. Conclusions In the present study on the immediate loading of single implants in the anterior maxilla, positive outcomes were reported, with high survival (100%) and success (95.2%) rates (the present study has been registered in the ISRCTN registry, a publicly available trial register recognized by WHO and ICMJE, with number ISRCTN12935478).

The Use of Calcium Ion Nanostructure Implant System for Missing Maxillary Anterior Teeth

“…In this study an early loading protocol was mandate as all implants recorded higher than 65 after six months, so that the secondary stage surgery was performed This result is in accordance with the outcome reached by the majority of studies that investigated osseointegration and implant stability at or before fourth postoperative week with the need for an early loading scheme (30)(31)(32). It is agreed upon in the literature that during the first two months following implantation, a bone remodeling with partial loss of initial mechanical stabilization of the implant occurs (33,34).…”

Comparing conventional flap‐less immediate implantation and socket‐shield technique for esthetic and clinical outcomes: A randomized clinical study

“…A resonance frequency analyzer was used in the current study to evaluate implant stability and has been reported to be a reliable tool for this purpose (Huwiler, Pjetursson, Bosshardt, Salvi, & Lang, ; Kessler‐Liechti, Zix, & Mericske‐Stern, ). Implants with a primary stability above ISQ 60 have been indicated to be suitable for immediate restoration and sufficiently stable to initiate restoration (Stanley, Braga, & Jordao, ). In this study, the postoperative immediate ISQ was 76.01 ± 1.31 in the SST group and 75.56 ± 1.07 in the control group without any significant difference, enabling the placement of an immediate endosseous implant with sufficient initial stability.…”

Evaluation of Immediate Implant Placement With a Modified Socket Shield Technique Using Xenogenic Bone Graft (A Randomized Controlled Clinical Trial)

“…(35,36) Implants with ISQ 60 and above have been recorded to be suitable for immediate loading. (21) In our study, median of primary stability for the study and control group was 68, 66.5 respectively. While secondary stability was 78 in the study group and 73 in the control group.…”

“…This ISQ value, was reported to be the threshold necessary to withstand immediate loading. (21) In our study, socket shield technique was modified and put under testing for the grafting of the buccal gap space to see its effect on osseointegration of the implant. The bone graft used was xenogenic bone from bovine sources, the labial shield was reduced to about 2 mm in thickness and its height was flushed at the level of the labial bone.…”