When someone is told they "do not have enough bone for implants", it usually means the standard approach has run out of room. The upper jaw in particular tends to lose height and width quickly once teeth are gone, and the maxillary sinus expands downward into the space where an implant would normally sit. For many patients this is where the conversation stops, followed by years of bone grafting, sinus lifts and waiting. It does not have to. A small group of techniques anchors the new teeth in bone that atrophy does not touch: the cheekbone, the pterygoid plates at the back of the jaw, or a custom frame that rests on the bone surface itself. At Ortoimplant, this is our core niche. There is no patient we cannot rehabilitate.<\/p>\n
Bone is a use it or lose it tissue. Once a tooth is extracted, the ridge that held it stops receiving the load it was built for, and the body reabsorbs it. In the lower jaw this happens slowly. In the upper back jaw it can be dramatic, because the sinus floor drifts down and the ridge shrinks from both sides. Long term denture wearers, people who lost teeth to advanced gum disease, and patients who have had a previous graft fail often arrive with only a few millimetres of usable bone. Traditional implants need a certain volume of bone to gain stability. When that volume is gone, the solution is not always to rebuild the bone. Sometimes it is to reach past the missing bone entirely.<\/p>\n
The Zygoma, your cheekbone, is dense and stays solid even when the upper jaw has almost disappeared. Zygomatic implants are longer than conventional ones and are placed at an angle so that they pass through or beside the residual ridge and engage this cheekbone. Two per side, sometimes combined with standard implants at the front, can carry a full fixed bridge for the whole upper arch.<\/p>\n
The evidence behind them is now substantial. A meta-analysis pooling 1,349 zygomatic implants across 623 patients reported a mean survival of 96.2% at six years, with an annual failure incidence below 1% [<\/sup>2<\/sup>]<\/sup>. An overview of multiple systematic reviews found survival figures clustering between roughly 95% and 98% in atrophic upper jaws, comparable to conventional implants placed in good bone [<\/sup>1<\/sup>]<\/sup>. The technique also lends itself to immediate function. In the same meta-analysis, implants loaded immediately actually recorded slightly higher survival than those loaded after a delay, at 98.1% [<\/sup>2<\/sup>]<\/sup>.<\/p>\n The complication most worth understanding is sinusitis, because these implants pass close to the sinus. Reported rates vary with technique and follow-up, from a few per cent in some reviews to around 14% over longer periods [<\/sup>1<\/sup>][<\/sup>2<\/sup>]<\/sup>. It is manageable and often treatable, but it is a real reason to have this surgery done by an experienced team that plans the trajectory carefully.<\/p>\n Zygomatic work is genuinely demanding surgery. It rewards planning and repetition, which is why we treat it as a specialism rather than an occasional procedure.<\/p>\n The pterygoid technique solves a different problem. When the back of the upper jaw has no height for a molar implant, a pterygoid implant is angled backward to engage the pterygoid plates and the dense bone of the tuberosity region behind the arch. This restores chewing surface at the very back of the mouth, where a graft would otherwise be needed, and it lets a fixed bridge extend further without cantilevering off the front teeth.<\/p>\n A 2024 systematic review of 38 studies, covering more than 3,000 pterygoid implants in over 2,200 patients, calculated a ten year cumulative survival rate of 92.5% [<\/sup>3<\/sup>]<\/sup>. Most failures happened in the first year, and implants splinted together with others in a bridge tended to do better than isolated ones. That pattern fits how we use them: as part of a planned full arch reconstruction, not in isolation.<\/p>\n Because they avoid the sinus and reach solid bone at an angle, pterygoid implants are often combined with anterior implants or zygomatic implants to support teeth in a single arch without grafting.<\/p>\n The subperiosteal idea is old, but the way it is made is new. Instead of a post placed inside the bone, a subperiosteal implant is a custom titanium framework that sits on top of the jawbone, under the gum, with small posts emerging to hold the teeth. Early versions from decades ago were cast by hand and had a poor reputation. Today the frame is designed digitally from a CBCT scan and printed to fit one specific jaw, which has revived the concept for patients whose bone is too thin for anything anchored inside it.<\/p>\n A 2024 systematic review of additively manufactured (3D printed) subperiosteal implants found that 97.8% were still in function after a mean follow up of about 21 months [<\/sup>4<\/sup>]<\/sup>. That short term survival is encouraging. The honest caveat is soft tissue: in the same review, roughly a quarter of implants showed partial exposure of the frame through the gum, and a small share of patients had infection [<\/sup>4<\/sup>]<\/sup>. The follow up is also still relatively short and the overall quality of evidence was rated low, so we present this as a promising option for selected cases rather than a first choice for everyone.<\/p>\n In some anatomies the floor and walls around the nasal cavity offer anchorage when the cheekbone route is not ideal. Transnasal implants use this dense bone at the front of the upper jaw. They are less common than the techniques above and the published evidence base is smaller, so we consider them case by case, within a plan built around the individual scan.<\/p>\n None of these is a default. The right answer depends on where the remaining bone is, how much of the arch needs replacing, the state of the sinuses and gums, and what you want from the result. Our planning starts with a CBCT scan, which gives a three dimensional map of the jaw, sinuses and vital structures. From that we plan the implant positions digitally and, where useful, place them with a guided surgical approach so the real surgery follows the plan closely.<\/p>\n Often the best solution is a combination: standard implants where bone allows, angled or zygomatic implants where it does not, tied together into one fixed bridge. Concepts such as All-on-4<\/a> and All-on-6 describe this idea of supporting a full arch on a small number of well placed implants, and graft-free techniques extend that logic to jaws that would otherwise be turned away.<\/p>\n These procedures are more involved than a single implant, and many of the people who need them have avoided the dentist for years out of anxiety. For that reason we offer analgosedation, a light sedation that keeps you calm and comfortable through longer surgery while you remain responsive. It suits both anxious patients and more complex placements.<\/p>\n Recovery is supported by our DENTAL SPA side. Depending on the case, this can include hyperbaric oxygen therapy in our pressure chamber to support tissue healing, ozone therapy, lymphatic drainage before surgery to reduce swelling, and intravenous vitamin support. These are adjuncts that aim to make the healing phase smoother, not replacements for careful surgery and good aftercare.<\/p>\n If you have been told you are not a candidate for implants because of bone loss, that verdict was almost certainly based on the conventional approach alone. Zygomatic, pterygoid and subperiosteal techniques exist precisely for the jaws that conventional implants cannot serve, and the published survival data for the two most established of them is strong. Whether one of them fits your case is a question for an examination and a scan, not a brochure. At Ortoimplant your first consultation is free, and it is the proper place to find out which door is open to you.<\/p>\n Almost certainly not. That verdict is usually based on the conventional approach, which needs a certain volume of bone to gain stability. Techniques such as zygomatic, pterygoid and subperiosteal implants exist precisely for jaws that conventional implants cannot serve, because they anchor in bone that atrophy does not touch. Whether one fits your case is a question for an examination and a scan.<\/p>\n<\/div>\n Zygomatic implants are longer than conventional ones and are placed at an angle so they engage the cheekbone, which stays dense and solid even when the upper jaw has almost disappeared. The evidence behind them is substantial: pooled data reported a mean survival of 96.2% at six years, comparable to conventional implants placed in good bone. They are demanding surgery, which is why we treat them as a specialism rather than an occasional procedure.<\/p>\n<\/div>\n Not with these techniques. The whole point of graft-free solutions is to reach past the missing bone entirely rather than rebuild it, so we can often avoid the long cycle of grafting, sinus lifts and waiting. Standard implants are still used where bone allows, and angled or zygomatic implants take over where it does not, all tied into one fixed bridge.<\/p>\n<\/div>\n For suitable cases a fixed provisional set of teeth can be attached quickly, sometimes within a day of surgery, so you do not leave without teeth. These techniques also lend themselves to immediate function; in one meta-analysis, immediately loaded zygomatic implants recorded slightly higher survival than those loaded after a delay. Whether this applies to your case depends on the examination and plan.<\/p>\n<\/div>\n The complication most worth understanding with zygomatic implants is sinusitis, because they pass close to the sinus; reported rates vary with technique and follow-up. With 3D-printed subperiosteal implants, the honest caveat is soft tissue, as a share of cases showed partial exposure of the frame through the gum. These risks are manageable but are a real reason to have this surgery done by an experienced team that plans carefully.<\/p>\n<\/div>\n Many people who need these procedures have avoided the dentist for years out of anxiety, so we offer analgosedation, a light sedation that keeps you calm and comfortable through longer surgery while you remain responsive. Recovery is supported by our DENTAL SPA side, which may include hyperbaric oxygen therapy, ozone therapy, lymphatic drainage and intravenous vitamin support. These are adjuncts to careful surgery and good aftercare, not replacements for them.<\/p>\n<\/div>\n<\/div>\n When someone is told they “do not have enough bone for implants”, it usually means the standard approach has run out of room. The upper jaw in particular tends to lose height and width quickly once teeth are gone, and the maxillary sinus expands downward into the space where an implant would normally sit. For many patients this is where the conversation stops, followed by years of bone grafting, sinus lifts and waiting. It does not have to. A small group of techniques anchors the new teeth in bone that atrophy does not touch: the cheekbone, the pterygoid plates at the back of the jaw, or a custom frame that rests on the bone surface itself. At Ortoimplant, this is our core niche. There is no patient we cannot rehabilitate.<\/p>\n","protected":false},"author":2,"featured_media":1181,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[36],"tags":[],"class_list":["post-886","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-implants-without-bone-en"],"acf":[],"_links":{"self":[{"href":"https:\/\/ortoimplant.hr\/en\/wp-json\/wp\/v2\/posts\/886","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ortoimplant.hr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ortoimplant.hr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ortoimplant.hr\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ortoimplant.hr\/en\/wp-json\/wp\/v2\/comments?post=886"}],"version-history":[{"count":13,"href":"https:\/\/ortoimplant.hr\/en\/wp-json\/wp\/v2\/posts\/886\/revisions"}],"predecessor-version":[{"id":1676,"href":"https:\/\/ortoimplant.hr\/en\/wp-json\/wp\/v2\/posts\/886\/revisions\/1676"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ortoimplant.hr\/en\/wp-json\/wp\/v2\/media\/1181"}],"wp:attachment":[{"href":"https:\/\/ortoimplant.hr\/en\/wp-json\/wp\/v2\/media?parent=886"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ortoimplant.hr\/en\/wp-json\/wp\/v2\/categories?post=886"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ortoimplant.hr\/en\/wp-json\/wp\/v2\/tags?post=886"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Pterygoid implants: reaching the back of the jaw<\/h2>\n
Subperiosteal implants: a custom frame on the bone<\/h2>\n
Transnasal implants and other angled approaches<\/h2>\n
How we decide which route fits you<\/h2>\n
Comfort, sedation and recovery<\/h2>\n
Is a graft-free solution right for you?<\/h2>\n
Frequently asked questions<\/h2>\n
I have been told I do not have enough bone for implants. Does that mean implants are impossible for me?<\/h3>\n
What are zygomatic implants, and are they reliable?<\/h3>\n
Will I have to go through years of bone grafting and sinus lifts first?<\/h3>\n
Can I get fixed teeth quickly, or will I be left without teeth?<\/h3>\n
What are the main risks I should understand?<\/h3>\n
I am very anxious about dental surgery. What support do you offer?<\/h3>\n
Sources and references<\/h2>\n
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