George Zarb - Academia.edu (original) (raw)

Papers by George Zarb

Research paper thumbnail of Temporomandibular pain-dysfunction: a suggested classification and treatment

Research paper thumbnail of Tissue integrated dental prostheses

Quintessence international

Research paper thumbnail of Use of provisional prostheses with osseointegration

Dental Clinics of North America

The ingenuity that has characterized the fabrication of provisional prostheses has been readily a... more The ingenuity that has characterized the fabrication of provisional prostheses has been readily adapted to the osseointegration technique. Implant abutments do not need protection during final prosthesis fabrication stages as teeth do. However, compelling arguments can be made in favor of esthetic, comfortable, and functional provisional prostheses supported by implants, even if they are worn for only a few weeks. The prosthodontic contribution to a patient's quality of life throughout all stages of treatment is thereby enhanced.

Research paper thumbnail of On the Management of Temporomandibular Disorders: A Plea for a Low-Tech, High-Prudence Therapeutic Approach

Journal of orofacial pain

Research paper thumbnail of On prosthodontic education: current dilemmas

The International journal of prosthodontics

Research paper thumbnail of A 5-Year Prospective Study on Implant-Supported Single-Tooth Replacements

Research paper thumbnail of Altered Sensation Associated with Mandibular Implant Surgery: a Psychophysical Prospective Pilot Study

Research paper thumbnail of Sensory Disturbances Following Implant Surgery: A Prospective Psychophysical Pilot Study

Research paper thumbnail of Sensory Disturbances Following Implant Surgery: Results from A 1-Year Prospective Psychophysical Pilot Study

Research paper thumbnail of Quality of Life Assessment Following Mandibular Implant Surgery

Research paper thumbnail of Biological, microbiological and clinical aspects of the peri-implant mucosa

Research paper thumbnail of Outcomes of implant prosthodontic treatment in older adults. J Can Dent Assoc

Journal (Canadian Dental Association)

Older adults are expected to account for an increasingly disproportionate number of individuals n... more Older adults are expected to account for an increasingly disproportionate number of individuals needing oral implant prostheses. However, this biotechnology was initially studied for predominantly middle-aged edentulous patients, not elderly people. High rates of success and minimal crestal bone loss have been reported for oral implants mainly in this group. The results of studies at the University of Toronto now clearly support earlier reports that older adults respond to oral implants in the same manner as younger adults, despite their tendency for systemic illness, including osteoporosis. However, unfavourable jawbone quantity and quality, particularly atrophy of the maxilla, impaired implant success. Furthermore, placement of implants in sites that had been edentulous for shorter periods was associated with greater crestal bone loss, a finding that may have implications for younger adults undergoing such treatment. The major decision-making challenge in managing depleted dentiti...

Research paper thumbnail of A Retrospective Study on the Treatment Outcome of Wide-Bodied Implants

The International journal of prosthodontics

This retrospective study documented the 5-year cumulative survival rate (CSR) of 5-mm-diameter wi... more This retrospective study documented the 5-year cumulative survival rate (CSR) of 5-mm-diameter wide-bodied implants in posterior jaws as related to identified risk factors and relative host bone site dimensions. Sixty-four wide-bodied implants placed consecutively in the posterior jaws of 43 patients were matched using several identified risk factors with 64 regular-diameter implants (3.75-mm or 4-mm diameter) placed in the posterior jaws of 25 of the same patients and 14 others. Life table analyses were undertaken to examine the difference in CSR between the groups. Multivariate Cox regression was conducted to assess the relationship between potential risk factors and overall CSR. Ten of the wide-bodied implants failed (CSR 80.9%), while two of the regular-diameter implants failed (CSR 96.8%). The difference between the groups was statistically significant. Multivariate analysis demonstrated a significant predictive relationship between overall CSR and the ratio of implant volume t...

Research paper thumbnail of On osseointegration: the healing adaptation principle in the context of osseosufficiency, osseoseparation, and dental implant failure. Int J Prosthodont

The International journal of prosthodontics

The host-implant interface is remarkably enduring given the functional and biologic challenges it... more The host-implant interface is remarkably enduring given the functional and biologic challenges it faces, and our success in assisting patients to lead better lives because of implant biotechnology is the envy of many other health care practitioners. It is therefore vital that dentists accept that clinically significant marginal bone loss is uncommon and that implant failure is rare. In this paper, important elements regarding why implants experience marginal bone loss, why implants may fail as a result of such bone loss, and how to describe the continuum of bone loss with respect to patient-mediated outcomes are outlined.

Research paper thumbnail of A 5-year prospective study of implant-supported single-tooth replacements

Journal (Canadian Dental Association), 2002

Because osseointegration has been successful in the management of completely edentulous patients,... more Because osseointegration has been successful in the management of completely edentulous patients, it is tempting to extrapolate these results and infer the success of single-tooth replacement. Yet there are major clinical differences between edentulous and partially edentulous patients. This prospective study is a follow-up to one started at the University of Toronto in 1986. The purpose of this study was to continue longitudinal assessment of implant-supported single-tooth replacements. The original study comprised 42 consecutively treated patients with a total of 49 implants. The patient group consisted of all University of Toronto patients treated with single Br nemark implants whose treatment had been completed more than 5 years previously (i.e., before 1994). No exclusion criteria applied. One implant was not osseointegrated at the time of stage 2 surgery, and 6 patients with reportedly successful osseointegrated implants were not available for recall. For the preparation of th...

Research paper thumbnail of On osseointegration: the healing adaptation principle in the context of osseosufficiency, osseoseparation, and dental implant failure

The International journal of prosthodontics

The host-implant interface is remarkably enduring given the functional and biologic challenges it... more The host-implant interface is remarkably enduring given the functional and biologic challenges it faces, and our success in assisting patients to lead better lives because of implant biotechnology is the envy of many other health care practitioners. It is therefore vital that dentists accept that clinically significant marginal bone loss is uncommon and that implant failure is rare. In this paper, important elements regarding why implants experience marginal bone loss, why implants may fail as a result of such bone loss, and how to describe the continuum of bone loss with respect to patient-mediated outcomes are outlined.

Research paper thumbnail of Osseointegration: promise and platitudes

The International journal of prosthodontics

Research paper thumbnail of A comparison of the accuracy of fit of 2 methods for fabricating implant-prosthodontic frameworks

The International journal of prosthodontics

To compare the in vitro 3-dimensional (3D) accuracy of fit of laser-scanned Computer Numeric Cont... more To compare the in vitro 3-dimensional (3D) accuracy of fit of laser-scanned Computer Numeric Controlled (CNC)-milled implant titanium frameworks to that of conventional cast frameworks. Nine cast frameworks were fabricated on the mandibular master casts of 9 patients with 5 implants each following the well-established conventional fabrication technique. The frameworks were then laser scanned, and 9 CNC-milled titanium frameworks matching the outline of the conventional frameworks were fabricated. The accuracy of fit of both framework types was measured using a contact-type coordinate measuring machine and a computer program developed specifically for this purpose. Statistical analysis was done by a series of paired ttests. The laser-scanned CNC-milled frameworks showed significantly less distortion along the x-axis (transversal, d(x)) compared with the conventional frameworks (means: 33.7 microm and 49.2 microm, respectively) (P = .011). The titanium frameworks also demonstrated sig...

Research paper thumbnail of The use of electronic devices in the diagnosis and treatment of temporomandibular disorders

Journal (Canadian Dental Association), 1989

Research paper thumbnail of The effects of cemented and uncemented endosseous implants

The Journal of Prosthetic Dentistry, 1979

Research paper thumbnail of Temporomandibular pain-dysfunction: a suggested classification and treatment

Research paper thumbnail of Tissue integrated dental prostheses

Quintessence international

Research paper thumbnail of Use of provisional prostheses with osseointegration

Dental Clinics of North America

The ingenuity that has characterized the fabrication of provisional prostheses has been readily a... more The ingenuity that has characterized the fabrication of provisional prostheses has been readily adapted to the osseointegration technique. Implant abutments do not need protection during final prosthesis fabrication stages as teeth do. However, compelling arguments can be made in favor of esthetic, comfortable, and functional provisional prostheses supported by implants, even if they are worn for only a few weeks. The prosthodontic contribution to a patient's quality of life throughout all stages of treatment is thereby enhanced.

Research paper thumbnail of On the Management of Temporomandibular Disorders: A Plea for a Low-Tech, High-Prudence Therapeutic Approach

Journal of orofacial pain

Research paper thumbnail of On prosthodontic education: current dilemmas

The International journal of prosthodontics

Research paper thumbnail of A 5-Year Prospective Study on Implant-Supported Single-Tooth Replacements

Research paper thumbnail of Altered Sensation Associated with Mandibular Implant Surgery: a Psychophysical Prospective Pilot Study

Research paper thumbnail of Sensory Disturbances Following Implant Surgery: A Prospective Psychophysical Pilot Study

Research paper thumbnail of Sensory Disturbances Following Implant Surgery: Results from A 1-Year Prospective Psychophysical Pilot Study

Research paper thumbnail of Quality of Life Assessment Following Mandibular Implant Surgery

Research paper thumbnail of Biological, microbiological and clinical aspects of the peri-implant mucosa

Research paper thumbnail of Outcomes of implant prosthodontic treatment in older adults. J Can Dent Assoc

Journal (Canadian Dental Association)

Older adults are expected to account for an increasingly disproportionate number of individuals n... more Older adults are expected to account for an increasingly disproportionate number of individuals needing oral implant prostheses. However, this biotechnology was initially studied for predominantly middle-aged edentulous patients, not elderly people. High rates of success and minimal crestal bone loss have been reported for oral implants mainly in this group. The results of studies at the University of Toronto now clearly support earlier reports that older adults respond to oral implants in the same manner as younger adults, despite their tendency for systemic illness, including osteoporosis. However, unfavourable jawbone quantity and quality, particularly atrophy of the maxilla, impaired implant success. Furthermore, placement of implants in sites that had been edentulous for shorter periods was associated with greater crestal bone loss, a finding that may have implications for younger adults undergoing such treatment. The major decision-making challenge in managing depleted dentiti...

Research paper thumbnail of A Retrospective Study on the Treatment Outcome of Wide-Bodied Implants

The International journal of prosthodontics

This retrospective study documented the 5-year cumulative survival rate (CSR) of 5-mm-diameter wi... more This retrospective study documented the 5-year cumulative survival rate (CSR) of 5-mm-diameter wide-bodied implants in posterior jaws as related to identified risk factors and relative host bone site dimensions. Sixty-four wide-bodied implants placed consecutively in the posterior jaws of 43 patients were matched using several identified risk factors with 64 regular-diameter implants (3.75-mm or 4-mm diameter) placed in the posterior jaws of 25 of the same patients and 14 others. Life table analyses were undertaken to examine the difference in CSR between the groups. Multivariate Cox regression was conducted to assess the relationship between potential risk factors and overall CSR. Ten of the wide-bodied implants failed (CSR 80.9%), while two of the regular-diameter implants failed (CSR 96.8%). The difference between the groups was statistically significant. Multivariate analysis demonstrated a significant predictive relationship between overall CSR and the ratio of implant volume t...

Research paper thumbnail of On osseointegration: the healing adaptation principle in the context of osseosufficiency, osseoseparation, and dental implant failure. Int J Prosthodont

The International journal of prosthodontics

The host-implant interface is remarkably enduring given the functional and biologic challenges it... more The host-implant interface is remarkably enduring given the functional and biologic challenges it faces, and our success in assisting patients to lead better lives because of implant biotechnology is the envy of many other health care practitioners. It is therefore vital that dentists accept that clinically significant marginal bone loss is uncommon and that implant failure is rare. In this paper, important elements regarding why implants experience marginal bone loss, why implants may fail as a result of such bone loss, and how to describe the continuum of bone loss with respect to patient-mediated outcomes are outlined.

Research paper thumbnail of A 5-year prospective study of implant-supported single-tooth replacements

Journal (Canadian Dental Association), 2002

Because osseointegration has been successful in the management of completely edentulous patients,... more Because osseointegration has been successful in the management of completely edentulous patients, it is tempting to extrapolate these results and infer the success of single-tooth replacement. Yet there are major clinical differences between edentulous and partially edentulous patients. This prospective study is a follow-up to one started at the University of Toronto in 1986. The purpose of this study was to continue longitudinal assessment of implant-supported single-tooth replacements. The original study comprised 42 consecutively treated patients with a total of 49 implants. The patient group consisted of all University of Toronto patients treated with single Br nemark implants whose treatment had been completed more than 5 years previously (i.e., before 1994). No exclusion criteria applied. One implant was not osseointegrated at the time of stage 2 surgery, and 6 patients with reportedly successful osseointegrated implants were not available for recall. For the preparation of th...

Research paper thumbnail of On osseointegration: the healing adaptation principle in the context of osseosufficiency, osseoseparation, and dental implant failure

The International journal of prosthodontics

The host-implant interface is remarkably enduring given the functional and biologic challenges it... more The host-implant interface is remarkably enduring given the functional and biologic challenges it faces, and our success in assisting patients to lead better lives because of implant biotechnology is the envy of many other health care practitioners. It is therefore vital that dentists accept that clinically significant marginal bone loss is uncommon and that implant failure is rare. In this paper, important elements regarding why implants experience marginal bone loss, why implants may fail as a result of such bone loss, and how to describe the continuum of bone loss with respect to patient-mediated outcomes are outlined.

Research paper thumbnail of Osseointegration: promise and platitudes

The International journal of prosthodontics

Research paper thumbnail of A comparison of the accuracy of fit of 2 methods for fabricating implant-prosthodontic frameworks

The International journal of prosthodontics

To compare the in vitro 3-dimensional (3D) accuracy of fit of laser-scanned Computer Numeric Cont... more To compare the in vitro 3-dimensional (3D) accuracy of fit of laser-scanned Computer Numeric Controlled (CNC)-milled implant titanium frameworks to that of conventional cast frameworks. Nine cast frameworks were fabricated on the mandibular master casts of 9 patients with 5 implants each following the well-established conventional fabrication technique. The frameworks were then laser scanned, and 9 CNC-milled titanium frameworks matching the outline of the conventional frameworks were fabricated. The accuracy of fit of both framework types was measured using a contact-type coordinate measuring machine and a computer program developed specifically for this purpose. Statistical analysis was done by a series of paired ttests. The laser-scanned CNC-milled frameworks showed significantly less distortion along the x-axis (transversal, d(x)) compared with the conventional frameworks (means: 33.7 microm and 49.2 microm, respectively) (P = .011). The titanium frameworks also demonstrated sig...

Research paper thumbnail of The use of electronic devices in the diagnosis and treatment of temporomandibular disorders

Journal (Canadian Dental Association), 1989

Research paper thumbnail of The effects of cemented and uncemented endosseous implants

The Journal of Prosthetic Dentistry, 1979