Comparative evaluation of implant designs: influence of diameter, length, and taper on strains in the alveolar crest

Petrie, Cynthia S.; Williams, John L.

doi:10.1111/j.1600-0501.2005.01132.x

Cited by 284 publications

(270 citation statements)

References 32 publications

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“…Pierrisnard et al [12] found in their study that the stress to which implants were exposed increased as the length of the implant increased (range, 6 to 12 mm) while the maximum bone stress was found to be almost constant. Study of C. S. Petrie et al [13] came to the conclusion that strain near crestal bone area reduces nearly by 300% due to increase in diameter as compared to the 165% reduction due to increase in length of implant. Therefore, comparatively larger diameter of implant design is preferred.…”

Section: Introductionmentioning

confidence: 99%

Optimum Selection of the Dental Implants according to Length and Diameter Parameters by FE Method in the Anterior Position

Arsalanloo¹,

Telchi²,

Ghaemi³

et al. 2014

IJBBB

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Abstract-Dental implants are used to retain and support fixed and removable dental prostheses. Over the past several decades, dental rehabilitation with implants has been widely accepted by dentists and patients because of its reliable functional and aesthetic results. In many clinical situations, local bone morphology requires dental implants that have a diameter that is significantly smaller than the typical implant diameters. In these cases, the fatigue life of the smaller diameter implants becomes a critical therapeutic parameter. According to particular situation of lateral incisor tooth, which has low space and also limited height due to the existence of the Sinus and Nerves in maxilla and mandible, respectively. Applications of various kinds of implants are being limited. This paper investigates the biomechanical behavior of a threaded dental implant/surrounding bone system under static and harmonic occlusal forces by using a three-dimensional finite element method for achieving the optimum diameter and length as the most effective parameters that are affected stress distribution in surrounding bones. The objective of this research was to select the optimum length and diameter for 26 different commercial dental implants by considering the variability in diameter and length and material of implants for missing upper/lower lateral incisor dental position by 3D finite element method. The influence of the length and diameter is considered after applying static, dynamic and fatigue loading for evaluation local/cycle failure probabilities in biodenta, CMI, DIO, implantium, and nobel implant systems. In this study, static dynamic and fatigue behaviors of the implants are investigated.Index Terms-Anterior mandible/maxilla, dental implant, finite element method, optimum diameter/length.

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Section: Introductionmentioning

confidence: 99%

Optimum Selection of the Dental Implants according to Length and Diameter Parameters by FE Method in the Anterior Position

Arsalanloo¹,

Telchi²,

Ghaemi³

et al. 2014

IJBBB

View full text Add to dashboard Cite

show abstract

“…Clinical studies revealed an association of loading conditions with marginal bone loss around oral implants and complete loss of osseointegration. In addition, finite element analysis (FEA) showed that stress on peri-implant tissues occurs under various conditions (3)(4)(5). Kitamura et al (3) found that biomechanical adaptation of bone to stress may result in conical resorption.…”

Section: Introductionmentioning

confidence: 99%

“…Kitamura et al (3) found that biomechanical adaptation of bone to stress may result in conical resorption. Ptrie et al (4) found that if the objective is to minimize peri-implant strain in the crestal alveolar bone, a wide and relatively long untampered implant is the best choice. Baggi et al (5) reported that cortical peri-implant areas vulnerable to overloading were affected primarily by implant diameter, irrespective of bone-implant interface length.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional finite element analysis of the effects of implant diameter and photofunctionalization on peri-implant stress

Ohyama

Yasuda

Shibuya

et al. 2017

Journal of Oral Science

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Previous finite element analyses of peri-implant stress assumed a bone-implant contact (BIC) ratio of 100%, even though the BIC ratio is known to be approximately 50% or less. However, the recent development of ultraviolet treatment of titanium immediately before use, known as photofunctionalization, significantly increased the BIC ratio, to 98.2%. We used a unique finite element analysis model that enabled us to examine the effects of different BIC ratios on peri-implant stress. A three-dimensional model was constructed under conditions of vertical or oblique loading, an implant diameter of 3.3, 3.75, or 5.0 mm, and a BIC ratio of 53.0% or 98.2%. Photofunctionalization and larger implant diameters were associated with reduced stress on surrounding tissues. Under vertical loading, photofunctionalization had a greater effect than increased implant diameter on stress reduction. Under oblique loading, increased implant diameter had a greater effect than photofunctionalization on stress reduction.

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“…The mode of retention of the Locator attachments is frictional contact, which arises from a dimensional misfit between the slightly oversized nylon male insert and the smaller diameter of the inner ring of the female abutment 21) . Reviewing the literature, the effect of implant diameter on peri-implant crestal strain was investigated in several finite element studies (FEA) 2,9,14,15,[22][23][24][25][26][27][28] . However, FEA has several drawbacks.…”

Section: Introductionmentioning

confidence: 99%

The effect of implant diameter on strain around implants retaining a mandibular overdenture with Locator attachments: An <i>in vitro</i> study

2016

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This study evaluated the effect of implant diameter on strain around implants retaining mandibular overdentures with Locator attachments. Three mandibular acrylic resin models were constructed with 2 implants inserted in canine areas and classified according to implant diameter into 3 groups: large (4.2 mm), medium (3.7 mm), and small (3.3 mm) diameter implants. Duplicate dentures were connected to the implants with Locator attachments. Four strain gauges were bonded to the acrylic resin at mesial, distal, buccal and lingual surfaces of each implant and strain was measured at loading and non-loading sides during 1st premolar and 1st molar loading. Small and large diameter implants recorded the highest and the lowest strain, respectively. Buccal and lingual sites recorded the highest strain, and mesial site recorded the lowest. First premolar loading recorded significant higher strain than first molar loading. The largest possible implant diameter is recommended to minimize strains around implants retaining mandibular overdentures with Locator attachments.

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Comparative evaluation of implant designs: influence of diameter, length, and taper on strains in the alveolar crest

Abstract: If the objective is to minimize peri-implant strain in the crestal alveolar bone, a wide and relatively long, untapered implant appears to be the most favorable choice. Narrow, short implants with taper in the crestal region should be avoided, especially in low-density bone.

Cited by 284 publications

References 32 publications

Optimum Selection of the Dental Implants according to Length and Diameter Parameters by FE Method in the Anterior Position

Optimum Selection of the Dental Implants according to Length and Diameter Parameters by FE Method in the Anterior Position

Three-dimensional finite element analysis of the effects of implant diameter and photofunctionalization on peri-implant stress

The effect of implant diameter on strain around implants retaining a mandibular overdenture with Locator attachments: An <i>in vitro</i> study

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