| 1. |
- Erkapers, Maria, et al.
(författare)
-
Patient satisfaction following dental implant treatment with immediate loading in the edentulous atrophic maxilla
- 2011
-
Ingår i: International Journal of Oral & Maxillofacial Implants. - 0882-2786 .- 1942-4434. ; 26:2, s. 356-364
-
Tidskriftsartikel (refereegranskat)abstract
- Purpose: The present study evaluated patient satisfaction using the Oral Health Impact Profile 49 (OHIP-49) questionnaire for patients who received six implants in the severely resorbed maxilla and an implant-supported prosthesis that was delivered within 24 hours after surgery. Materials and Methods: Fifty-one edentulous patients with severe atrophy in the maxilla were included in the study, which was performed at two centers. Six implants were placed in the maxilla and loaded within 24 hours with a provisional restoration. The definitive restorations were delivered 20 to 24 weeks later. Patients were asked to complete the OHIP-49 questionnaire (which includes seven domains representing functional limitation, physical pain, psychologic discomfort, physical disability, psychologic disability, social disability, and handicap) prior to implant placement and on three subsequent occasions. The data were collected and analyzed and OHIP scores were compared over time. Results: Baseline satisfaction scores for the two different centers displayed no statistically significant differences. Treatment resulted in improved total OHIP-49 scores in both centers, with no significant difference between centers. Furthermore, no significant differences were observed in any of the individual pretreatment and posttreatment OHIP-49 domains between centers. All seven domains showed a statistically significant improvement posttreatment. Of the seven domains, social disability and handicap showed the least improvement and had the lowest pretreatment scores, indicating lower significance for these domains compared to the other domains during implant treatment. This study also indicated that domains one to five (functional limitation, physical pain, psychologic discomfort, physical disability, and psychologic disability) are the most important domains in patient satisfaction with implant therapy. Conclusion: Measurement with the OHIP-49 questionnaire displayed that patient satisfaction increases after treatment with a fixed restoration on implants loaded within 24 hours.
|
|
| 2. |
- Erkapers, Maria, et al.
(författare)
-
The influence of immediately loaded implant treatment in the atrophic edentulous maxilla on oral health related quality of life of edentulous patients : 3-year results of a prospective study
- 2017
-
Ingår i: Head & Face Medicine. - : Springer Science and Business Media LLC. - 1746-160X. ; 13:1
-
Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: To evaluate oral health related quality of life (OHQoL) in edentulous patients treated with immediately loaded implants in the maxilla.METHODS: Fifty-one edentulous patients in two centers received six maxillary implants each were loaded within 24 h with provisional restoration. Definitive restoration was delivered 20-24 weeks later. OHQoL was evaluated preoperatively with the Oral Health Impact Profile 49 questionnaire (OHIP-49) and on five subsequent occasions. OHIP-49 includes seven domains representing functional limitation, physical pain, psychological discomfort, physical disability, psychological disability, social disability, and handicap. A reduction in OHIP scores indicated an improved OHQoL.RESULTS: Forty-five patients reached the three-year follow up. OHQoL improved after treatment. A plateau of OHQoL improvement was observed at 12 months after surgery. The seven domains improved at different pace, 12 weeks to 12 months after treatment. OHIP showed continuously low scores with no significant changes at consecutive visits 12 months to three years after treatment. Dental status with removable prosthesis in the mandible had a negative impact on OHQoL prior to and during treatment, but did not affect OHQoL after permanent restoration was placed. Patients age or gender did not affect OHQoL.CONCLUSIONS: Patients with edentulous maxilla who received prosthetic rehabilitation on immediately loaded implants experienced the highest improved OHQoL 12 months after implant installation. Quality of life related to oral health continued to be high after three years. Edentulous patients with atrophy of the maxilla experience an improved OHQoL after implant treatment with immediate loading protocol.TRIAL REGISTRATION: ClinicalTrials.gov Identifier NCT00711022 .
|
|
| 3. |
- Thor, Andreas, et al.
(författare)
-
Three-year Follow-up of Immediately Loaded Implants in the Edentulous Atrophic Maxilla : A Study in Patients with Poor Bone Quantity and Quality
- 2014
-
Ingår i: International Journal of Oral & Maxillofacial Implants. - 0882-2786 .- 1942-4434. ; 29:3, s. 642-649
-
Tidskriftsartikel (refereegranskat)abstract
- Purpose: Immediate loading of implants in the edentulous maxilla has previously been successfully performed and reported. Severe resorption of the maxillary alveolar crest presents a more demanding situation for the restorative team. Thus, it would be valuable to assess outcomes for this immediate loading treatment protocol in subjects with marked maxillary alveolar crest atrophy. This study evaluated the 3-year results of dental implants that were immediately restored with provisional fixed prostheses in atrophic maxillae without previous augmentation. Materials and Methods: Two centers enrolled subjects with resorbed edentulous maxillae (Lekholm and Zarb quality 3 or 4 and quantity C, D, or E). Six implants were placed in each subject and restored with screw-retained fixed provisionals within 24 hours. Impressions were taken for definitive restorations, which were placed 20 to 24 weeks later. Radiographs were used to analyze marginal bone level changes throughout the study. Results: Fifty-one patients received 306 implants. Forty-five patients remained in the study at the 3-year follow-up visit and successfully used their definitive prostheses. Sixty-two percent of the implants were placed in bone quantity C and quality 3 or 4, and 38% were placed in quantity D and quality 3 or 4 bone. Thirteen implants in six subjects were lost, resulting in a cumulative survival rate of 96% after 3 years. The mean marginal bone loss during the first year was -0.4 +/- 0.8 mm (255 implants); at 3 years it was -0.6 +/- 1.1 mm (253 implants). Conclusion: Data from the first 3 years of this study revealed good clinical outcomes. Careful selection of patients and planning by the restorative team can enable successful treatment outcomes for patients presenting with marked resorption of the edentulous maxilla.
|
|
| 4. |
- Toljanic, Joseph A., et al.
(författare)
-
Immediate Loading of Implants in the Edentulous Maxilla with a Fixed Provisional Restoration without Bone Augmentation : A Report on 5-Year Outcomes Data Obtained from a Prospective Clinical Trial
- 2016
-
Ingår i: International Journal of Oral & Maxillofacial Implants. - : Quintessence Publishing. - 0882-2786 .- 1942-4434. ; 31:5, s. 1164-1170
-
Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: Successful immediate loading of implants in the edentulous maxilla has been previously reported. The purpose of this 5-year prospective study was to further assess long-term outcomes following immediate loading of implants in the edentulous maxilla with fixed provisional restorations without the use of bone augmentation procedures.MATERIALS AND METHODS: Subjects with edentulous maxillary arches each received six implants placed in native bone without augmentation. Where insufficient posterior bone volume existed, angled implant placement was employed. Fixed provisional restorations were delivered within 24 hours of implant placement. Implant placement locations, insertion torque values, and implant dimensions were recorded. Definitive fixed prostheses were placed within 24 weeks following implantation. Baseline implant site marginal bone levels were measured using periapical radiographs. Baseline peri-implant plaque and bleeding scores were obtained. Subjects were examined 6 months after implant placement and then annually for 5 years with follow-up periapical radiographs and plaque/bleeding scores obtained.RESULTS: Fifty-one subjects received a total of 306 implants. Forty subjects with 232 implants returned for the final follow-up appointment representing a 5-year implant survival proportion of 93% with a mean marginal bone loss of 0.44 ± 1.25 mm for this group. Thirty-nine of these 40 subjects continued to function with fixed restorations with the remaining subject functioning with a non-implant-retained removable prosthesis.CONCLUSION: Within the limitations of this study, predictable long-term implant rehabilitation outcomes were demonstrated for the edentulous maxilla using an immediate loading protocol without bone augmentation.
|
|
| 5. |
- Toljanic, Joseph A., et al.
(författare)
-
Immediate Loading of Tilted and Axial Posterior Implants in the Edentulous Maxillary Arch : A Retrospective Comparison of 5-Year Outcomes
- 2018
-
Ingår i: International Journal of Oral & Maxillofacial Implants. - : QUINTESSENCE PUBLISHING CO INC. - 0882-2786 .- 1942-4434. ; 33:2, s. 433-438
-
Tidskriftsartikel (refereegranskat)abstract
- Purpose: The purpose of this study was to retrospectively compare long-term outcomes for immediately loaded tilted and axial implants placed in the posterior region of the edentulous maxillary arch.Materials and Methods: Data obtained from a 5-year prospective study designed to assess clinical outcomes following immediate loading of implants with screw-retained fixed restorations in the edentulous maxillary arch were retrospectively reviewed. Where insufficient alveolar bone was available for axial placement of the posterior-most implant on each side of the arch, tilted placement was employed. Implant survival and marginal bone level changes for these tilted and axial posterior implants were compared.Results: Fifty-one subjects received 64 tilted and 38 axial posterior implants. Forty subjects with 53 tilted and 34 axial posterior implants returned for follow-up after 5 years. Five tilted and seven axial implants failed, representing an 89% and 86% survival proportion, respectively. The mean marginal bone loss was 0.79 (SD: 1.42) mm for tilted implants and 0.14 (SD: 0.34) mm for axial implants. The differences in survival proportions and marginal bone loss between axial and tilted implants were not statistically significant.Conclusion: Predictable long-term implant rehabilitation may be achieved in the edentulous maxillary arch using posterior tilted implants in combination with immediate loading.
|
|
| 6. |
- Toljanic, Joseph A., et al.
(författare)
-
Implant Rehabilitation of the Atrophic Edentulous Maxilla Including Immediate Fixed Provisional Restoration Without the Use of Bone Grafting : A Review of 1-Year Outcome Data from a Long-Term Prospective Clinical Trial
- 2009
-
Ingår i: International Journal of Oral & Maxillofacial Implants. - 0882-2786 .- 1942-4434. ; 24:3, s. 518-526
-
Tidskriftsartikel (refereegranskat)abstract
- Purpose: The literature suggests that predictable integration can be achieved when dental implant placement is combined with immediate fixed provisional restoration in a variety of clinical situations. Fewer data are available, however, regarding outcomes for immediate provisional restoration of implants in the edentulous maxilla. This report presents 1-year data acquired from a long-term prospective clinical trial designed to assess outcomes following the immediate provisional fixed restoration of implants in the atrophic edentulous maxilla without the use of bone augmentation. Materials and Methods: Fifty-one subjects diagnosed with an atrophic edentulous maxilla received a total of 306 implants (six implants per subject) followed by fixed provisional restoration within 24 hours of implant placement. No subjects underwent grafting to enhance bone volume in preparation for implant treatment. Data acquired included bone quantity and quality, implant dimensions, implant locations, and implant placement stability. Subjects returned for 1-year follow-up examinations to assess implant integration and restoration function. Periapical radiographs were obtained and compared to baseline images to assess marginal bone height maintenance. Results: At the 3-month follow-up examination, 294 of 306 implants placed in 51 subjects were found to be integrated. This represents a cumulative implant survival rate of 96%. At the 1-year follow-up examination, mean marginal bone loss of 0.5 mm was noted, with no further loss of implants. Conclusions: These results support the contention that predictable long-term outcomes may be obtained for the atrophic edentulous maxilla when treated with an implant rehabilitation protocol that includes immediate fixed provisional restoration without the use of bone grafting. This strategy offers a promising treatment alternative for the patient with an atrophic edentulous maxilla.
|
|
| 7. |
- Komatsu, Kimberly J., et al.
(författare)
-
Global change effects on plant communities are magnified by time and the number of global change factors imposed
- 2019
-
Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - : National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 116:36, s. 17867-17873
-
Tidskriftsartikel (refereegranskat)abstract
- Accurate prediction of community responses to global change drivers (GCDs) is critical given the effects of biodiversity on ecosystem services. There is consensus that human activities are driving species extinctions at the global scale, but debate remains over whether GCDs are systematically altering local communities worldwide. Across 105 experiments that included over 400 experimental manipulations, we found evidence for a lagged response of herbaceous plant communities to GCDs caused by shifts in the identities and relative abundances of species, often without a corresponding difference in species richness. These results provide evidence that community responses are pervasive across a wide variety of GCDs on long-term temporal scales and that these responses increase in strength when multiple GCDs are simultaneously imposed.Global change drivers (GCDs) are expected to alter community structure and consequently, the services that ecosystems provide. Yet, few experimental investigations have examined effects of GCDs on plant community structure across multiple ecosystem types, and those that do exist present conflicting patterns. In an unprecedented global synthesis of over 100 experiments that manipulated factors linked to GCDs, we show that herbaceous plant community responses depend on experimental manipulation length and number of factors manipulated. We found that plant communities are fairly resistant to experimentally manipulated GCDs in the short term (<10 y). In contrast, long-term (≥10 y) experiments show increasing community divergence of treatments from control conditions. Surprisingly, these community responses occurred with similar frequency across the GCD types manipulated in our database. However, community responses were more common when 3 or more GCDs were simultaneously manipulated, suggesting the emergence of additive or synergistic effects of multiple drivers, particularly over long time periods. In half of the cases, GCD manipulations caused a difference in community composition without a corresponding species richness difference, indicating that species reordering or replacement is an important mechanism of community responses to GCDs and should be given greater consideration when examining consequences of GCDs for the biodiversity–ecosystem function relationship. Human activities are currently driving unparalleled global changes worldwide. Our analyses provide the most comprehensive evidence to date that these human activities may have widespread impacts on plant community composition globally, which will increase in frequency over time and be greater in areas where communities face multiple GCDs simultaneously.
|
|
| 8. |
|
|
