The research does not provide a specific minimum width for implants intended for molar placement. However, it does discuss various studies related to implant placement in molar areas, including the use of wide-diameter and ultra-wide diameter implants.
In one study, three implant diameters were evaluated for their effectiveness in enlarged mandibular first molar areas, with diameters of 2.9 mm, 4.1 mm, and 4.8 mm being used.
Another study focused on ultra-wide diameter implants, which are defined as those greater than 6 mm, specifically evaluating implants of 7 mm, 8 mm, and 9 mm. The findings suggest that while ultra-wide implants have shown promising results, the minimum width for effective placement in molar extraction sockets is generally around 4 mm, with wider diameters being preferred for better stability and load distribution. For immediate molar replacement, it is advisable to consider using implants with a diameter of at least 4 mm, but wider options (7 mm or more) may provide better outcomes in terms of stability and long-term success.
References
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A prospective study on ultra-wide diameter dental implants for immediate molar replacement. Clinical implant dentistry and related research. Volume: 20, Issue: 6, 2018 - André Hattingh , Geert Hommez , Hugo De Bruyn , Marie Huyghe , Stefan Vandeweghe
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Implant placement at the time of maxillary molar extraction: technique and report of preliminary results of 83 sites. Journal of periodontology. Volume: 77, Issue: 2, 2006 - Paul A Fugazzotto
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Comparative study of wide-diameter implants placed after dental extraction and implants positioned in mature bone for molar replacement. The International journal of oral & maxillofacial implants. Volume: 23, Issue: 3, 2008 May-Jun - Miguel Peñarrocha-Diago , Celia Carrillo-GarcĂ®a , Araceli Boronat-Lopez , Berta GarcĂa-Mira
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A Systematic Review of Outcomes Following Immediate Molar Implant Placement Based on Recently Published Studies. Clinical implant dentistry and related research. Volume: 18, Issue: 6, 2016 - Mohammad Ketabi , Douglas Deporter , Eshetu G Atenafu
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Initial clinical efficacy of 3-mm implants immediately placed into function in conditions of limited spacing. The International journal of oral & maxillofacial implants. Volume: 23, Issue: 2, 2008 Mar-Apr - Michael S Reddy , S Jean O’Neal , Sandra Haigh , Ruth Aponte-Wesson , Nico C Geurs