Failure Analysis of an Abutment Fracture on Single Implant Restoration

The effect of discrepancies between digital scans and conventional impressions on the clinical performance of a permanent restoration has not been fully understood.Thirty patients received conventional impressions and digital scans of a single implant restoration. Two crowns were made for the same implant using both methods. The time taken for each procedure was recorded. After analyzing the accuracy and effectiveness of both crowns, the best one was placed. A questionnaire was conducted to assess the preferences and comfort when using crowns made by one method or another.The total time for the traditional impression technique was 15 minutes, while the time for the digital scanning technique was significantly less – 10 minutes.The preparation time, including the disinfection of the silicone impressions, their transportation to the laboratory, the casting of the impressions, the hardening of the plaster, as well as the preparation of the model by the technician, was 4 hours for conventional impressions.The timing for sending the STL file and modeling the structure was less than 2 hours for the digital scan method. The production time of crowns takes 3 hours for both conventional impressions and digital ones.Of all crowns selected for placement, 46.7% were made from conventional impressions and 53.3% from digital scans. Participants preferred the digital scanning technique (89%) over the traditional impression-taking technique (11%).The data from this study suggest that digital scanning and CAD/CAM technology may be more effective and better accepted by study par-ticipants for a single implant restoration than conventional impressions and plaster casts.

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Evaluation of esthetic parameters related to a single implant restoration by laypeople and dentists

Journal of Prosthetic Dentistry ◽

10.1016/j.prosdent.2019.08.017 ◽

2020 ◽

Vol 124 (1) ◽

pp. 94-99

Author(s):

Adrien Pollini ◽

Dean Morton ◽

Sirikarn P. Arunyanak ◽

Bryan T. Harris ◽

Wei-Shao Lin

Keyword(s):

Implant Restoration ◽

Single Implant

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Integration of Intraoral Scanner-based Mandibular Movement Data for An Anterior Single-implant Restoration

The Korean Academy Of Oral & Maxillofacial Implantology ◽

10.32542/implantology.202019 ◽

2020 ◽

Vol 24 (4) ◽

pp. 212-218

Author(s):

Hyunho Lee ◽

Kyung Chul Oh ◽

Jae-Hoon Lee

Keyword(s):

Mandibular Movement ◽

Intraoral Scanner ◽

Movement Data ◽

Implant Restoration ◽

Single Implant

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A Modified Plastic Shell Technique for Cement-Retained Implant Restorations

Journal of Oral Implantology ◽

10.1563/aaid-joi-d-09-00005 ◽

2010 ◽

Vol 36 (4) ◽

pp. 291-294

Author(s):

Tuncer Burak Özçelik ◽

Burak Yılmaz

Keyword(s):

Modeling Technique ◽

Plastic Shell ◽

Technical Report ◽

Implant Restoration ◽

Single Implant

Abstract The best possible fit of prosthetic components should be the aim of the clinician. The technical report presented here describes the use of a modified plastic shell technique for modeling a cement-retained single-implant restoration. This approach will help to prevent potential errors caused by the wax modeling technique.

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Hard and Soft Tissue Augmentation with Single-Implant Restoration in the Esthetic Zone

Case Reports in Dentistry ◽

10.1155/2021/5737665 ◽

2021 ◽

Vol 2021 ◽

pp. 1-8

Author(s):

Igor Ashurko ◽

Nataliia Blagushina ◽

Anisa Borodiy ◽

Mary Magdalyanova

Keyword(s):

Soft Tissue ◽

Healing Process ◽

Soft Tissue Augmentation ◽

Socket Preservation ◽

Aesthetic Result ◽

Implant Placement ◽

Tissue Augmentation ◽

Immediate Implant ◽

Implant Restoration ◽

Single Implant

The removal of the central incisor of the upper jaw is a challenging process, since the restoration of a single implant in the esthetic zone is of great responsibility. When tooth extraction with immediate implant placement is not possible, modern protocols imply the use of the socket preservation technique. This method of preserving socket properties significantly reduces changes that occur during the healing process of the postextracted area and along with soft tissue augmentation allows to achieve a satisfying aesthetic result. The aim of present case report is to assess capabilities of socket preservation concept and application of soft tissue augmentation in the anterior maxillary region. The treatment steps of a 35-year-old woman who needed to remove tooth 11 with further dental implant placement are described. The clinical case is of interest because after socket preservation and soft tissue augmentation, an acceptable aesthetic result was not reached. However, additional soft tissue augmentation made it possible to achieve the desired result, which was stable for 7 years.

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Failure Analysis With the Scanning Electron Microscope

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100095662 ◽

1972 ◽

Vol 30 ◽

pp. 482-483

Author(s):

John R. Devaney

Keyword(s):

Electron Microscope ◽

Scanning Electron Microscope ◽

Integrated Circuits ◽

Failure Analysis ◽

High Reliability ◽

Military Applications ◽

Small Structure ◽

Useful Life ◽

Insight Into ◽

Scanning Electron

Occasionally in history, an event may occur which has a profound influence on a technology. Such an event occurred when the scanning electron microscope became commercially available to industry in the mid 60's. Semiconductors were being increasingly used in high-reliability space and military applications both because of their small volume but, also, because of their inherent reliability. However, they did fail, both early in life and sometimes in middle or old age. Why they failed and how to prevent failure or prolong “useful life” was a worry which resulted in a blossoming of sophisticated failure analysis laboratories across the country. By 1966, the ability to build small structure integrated circuits was forging well ahead of techniques available to dissect and analyze these same failures. The arrival of the scanning electron microscope gave these analysts a new insight into failure mechanisms.

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Using the scanning electron microscope for failure analysis of high density magnetic media

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100126755 ◽

1987 ◽

Vol 45 ◽

pp. 392-393

Author(s):

Evelyn R. Ackerman ◽

Gary D. Burnett

Keyword(s):

Electron Microscope ◽

Scanning Electron Microscope ◽

Failure Analysis ◽

High Density ◽

Magnetic Media ◽

Specific Data ◽

Retrieval Systems ◽

Operating Environments ◽

The Media ◽

Scanning Electron

Advancements in state of the art high density Head/Disk retrieval systems has increased the demand for sophisticated failure analysis methods. From 1968 to 1974 the emphasis was on the number of tracks per inch. (TPI) ranging from 100 to 400 as summarized in Table 1. This emphasis shifted with the increase in densities to include the number of bits per inch (BPI). A bit is formed by magnetizing the Fe203 particles of the media in one direction and allowing magnetic heads to recognize specific data patterns. From 1977 to 1986 the tracks per inch increased from 470 to 1400 corresponding to an increase from 6300 to 10,800 bits per inch respectively. Due to the reduction in the bit and track sizes, build and operating environments of systems have become critical factors in media reliability.Using the Ferrofluid pattern developing technique, the scanning electron microscope can be a valuable diagnostic tool in the examination of failure sites on disks.

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