Implant treatment without bone grafting in severely resorbed edentulous maxillae

Mattsson, Torsten; Köndell, P A; Gynther, Göran; Fredholm, U; Bolin, Anders

doi:10.1016/s0278-2391(99)90673-0

Cited by 75 publications

(76 citation statements)

References 9 publications

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“…Seventeen studies 3,7,14,17,19,20,23,29,32,33,36,37,39,45,47,49,51 exclusively evaluated implants inserted in maxillae, and exclusively evaluated implants inserted in mandibles in eleven studies. 1, 18,21,28,30,31,42,44,46,48,50 Implants were not immediately loaded in eight studies 7,13,37,38,43,47,48,51 In one study 36 some implants were immediately or delayed loaded, and another study 41 did not provide information about the healing/loading time. Twenty-three studies 8,13,[15][16][17]20,21,23,25,26,31,33,37,…”

Section: Description Of the Studiesmentioning

confidence: 99%

“…1, 18,21,28,30,31,42,44,46,48,50 Implants were not immediately loaded in eight studies 7,13,37,38,43,47,48,51 In one study 36 some implants were immediately or delayed loaded, and another study 41 did not provide information about the healing/loading time. Twenty-three studies 8,13,[15][16][17]20,21,23,25,26,31,33,37,38,[41][42][43][45][46][47][50][51][52] did not provide information about the opposing dentition to the implants being evaluated. Information about the implant inclination in degrees was not provided in eight studies.…”

Section: Description Of the Studiesmentioning

confidence: 99%

“…Information about the implant inclination in degrees was not provided in eight studies. 13,19,25,36,37,39,47,52 Of the forty-four studies comparing the procedures, a total of 5029 dental implants were tilted, with 82 failures (1.63%), and 5732 implants were axially placed, with 104 failures (1.81%). No study informed whether there was a statistically significant difference or not between the implant failure rates between the procedures.…”

Section: Description Of the Studiesmentioning

confidence: 99%

See 2 more Smart Citations

Tilted versus axially placed dental implants: A meta-analysis

Chrcanovic¹,

Albrektsson²,

Wennerberg³

2015

Journal of Dentistry

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Section: Description Of the Studiesmentioning

confidence: 99%

Section: Description Of the Studiesmentioning

confidence: 99%

Section: Description Of the Studiesmentioning

confidence: 99%

See 1 more Smart Citation

Tilted versus axially placed dental implants: A meta-analysis

Chrcanovic¹,

Albrektsson²,

Wennerberg³

2015

Journal of Dentistry

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“…Moreover, to achieve predictable results, the surgical experience along with a two-step procedure with delayed placement of implants is recommended (10,25,26). To overcome these limitations and potential complications of the sinus lift, the literature has suggested the use of inclined implants located in anatomical areas anteriorly or posteriorly to the sinus and, if it is present in the sinus septum, in the palate, and in pterygoid process to avoid implants endo-sinus (27)(28)(29)(30)(31)(32)(33)(34)(35)(36). The inclined positioning of the implants in those areas allows the choice of greater lengths, thus improving the bone anchoring, by increasing the inclination angle and therefore the support for the prosthesis, thus avoiding the need for bone grafting.…”

Section: Introductionmentioning

confidence: 99%

Transcrestal guided sinus lift without grafting materials: a 36 months clinical prospective study

Spinelli¹,

Vico²,

Condò

et al. 2015

ORL

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SUMMARYPurpose. This study describes the ability to perform a technique for bone regeneration in maxillary posterior deficit (TGSL) without the use of bone grafting materials using a highly minimally invasive protocol. Materials and methods. Sixty six implants have been inserted in the sinus floor of a total of 39 patients through the transcrestal guided sinus lift technique (TGSL). All patients have been followed for at least three years in function. The drilling protocol was adapted on the basis of bone density of each implant site to achieve a torque between 45 and 55 Ncm. Healing titanium abutments tightened to 35 Ncm have been used. A CAD/CAM metal ceramics final prosthetic restoration has been generated a six months after the tissues healing and the provisional functionalization of the occlusion. Survival rate of implants and prostheses, biological and biomechanical complications, changes in marginal bone levels, and total height of alveolar crest bone before and after surgery have been evaluate and measured by the results obtained in this prospective study. It was also measured the periodontal parameters as well as levels of perception of pain by the patient during the entire recovery period.Results. The result of the data of follow-up was 41.96 (24 to 36) months. Cumulative implant survival was 98.53% at 3 years. There were no biological and mechanical complications and there were no prosthetic failures during the whole period of follow-up. The Marginal Bone Loss (MBL) average during the first year of operation was from 0.33 to 0.36 mm, while the 3-year follow-up, the MBL average was 0.51 to 0.29 mm. The average of residual bone height of alveolar ridge before treatment was 6.7 to 1.6 mm (range 5.1 to 9.2 mm), while the average bone height was gained 6,4 -1.6 mm (range 3.2 to 8.1 mm). All patients reported lower pain levels and found to have normal periodontal parameters. Conclusions. This study suggests that the use of guided surgery to perform transcrestal maxillary sinus lift to increase the sub-antral crestal height is a minimally invasive technique of success for the short and medium-term of follow-up, thus avoiding the extended treatment time and reducing the morbidity associated with the lifting of the floor of the maxillary sinus with traditional technique using bone grafting materials. Furthermore, this protocol without the use of graft materials does not vary the final outcome that have demonstrated the presence of newly formed bone around implants offering always predictable results, and giving a further reduction in the costs of the procedure rehabilitation.

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“…In cases with significant atrophy, tilted implants have gained acceptance based on the use of longer implants, because these can anchor into a greater cortical bone surface and thus reduced the distal cantilever (Krekmanov et al, 2000). The use of tilted implants restricts the use of bone grafts and decreases surgical morbidity, with an over 90% success rate (Mattsson et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Stress Analysis in Maxillary All-On-Four Model

Cidade

Olate

Pozzer

et al. 2015

Int. J. Odontostomat.

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The aim of this research was to evaluate the load distribution in tilted distal implants used in the all-onfour system. Two implant schemes were used. In both, two vertical anterior implants and tilted posterior implants were installed, one group with an angulation of 15º and another with an angulation of 35º. The implants were installed together with a bar binding them all in a photoelastic model obtained from a replica of an edentulous maxilla. In this model, loads were produced in the sector of the bar cantilever, the abutment of the tilted implants and over the four implants using devices specially designed for this purpose. The bands were recorded with a digital camera, and the qualitative and quantitative analyses were carried out by means of student's t-test and the Mann-Whitney test in Biostat v. 5.0, considering a level of p<0.05 to establish a statistically significant relation. In the qualitative analysis, the implant with 35º presented the greatest amount of stress on the cantilever forces at cervical level. The quantitative studies showed fewer differences in all aspects assessed, although significant differences were observed between the two systems when loads were applied at cantilever level. It can be concluded that there are minimal differences in the stress distribution when comparing implants with angulations of 15º or 35º. However, there is a greater concentration of stress at the cervical level in implants tilted to 35º.

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Implant treatment without bone grafting in severely resorbed edentulous maxillae

Cited by 75 publications

References 9 publications

Tilted versus axially placed dental implants: A meta-analysis

Tilted versus axially placed dental implants: A meta-analysis

Transcrestal guided sinus lift without grafting materials: a 36 months clinical prospective study

Stress Analysis in Maxillary All-On-Four Model

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