Regenerative – Surgical procedures using digitized custom titanium mesh for bone regeneration

Professor Cai Xiaoxiao's webinar tackles one of the hardest problems in implant dentistry: restoring several consecutive missing teeth in the aesthetic zone. When a single tooth is lost, neighboring natural teeth still support the gum line and papilla, so the result usually looks natural. But when multiple adjacent teeth are missing, that periodontal blood supply and scalloped bone architecture collapse together, leaving a flattened ridge that resists both hard and soft tissue reconstruction. Professor Cai frames this challenge clearly before introducing her solution, and in doing so gives viewers a strong grounding in why standard approaches often underperform in these cases and why a more deliberate, engineered planning process is needed.

The core of her methodology is "beginning with the end in mind" — designing the final restoration first and working backward through surgical planning. This starts with a wax-up (informed by digital smile design and 3D scanning), which defines the ideal crown shape and anatomical landmarks before any implant is placed. From there, implant position is calculated with precision: shoulder depth 3-4mm below the gingival margin and 2-3mm inside the buccal bone contour, since she demonstrates that no amount of bone augmentation can compensate for a poorly positioned implant. Horizontal and vertical augmentation targets are then derived mathematically, accounting for expected resorption (roughly 0.5mm horizontally, 1mm vertically) so the final healed result still meets the prosthetic goal. Watching this section is valuable because it replaces guesswork with a repeatable, numbers-based protocol, including the "AB distance" principle that predicts whether a patient will end up with visible papillae or dark triangles.

The webinar's most practical value comes from its comparison of surgical techniques. Digital custom titanium mesh, fabricated to match the exact planned bone contour, offers stronger space maintenance and lower exposure rates (helped by ~60% porosity) than resorbable collagen membranes or the popular "sausage technique," which relies on over-augmenting and hoping the graft resorbs favorably. Professor Cai walks through multiple placement methods — freehand, vacuum-formed guides, 3D-printed resin templates, and cutting-edge AR/VR-assisted fixation — with real accuracy data from published studies, showing how guided approaches reduce placement error and produce more predictable outcomes. She backs this up with a full clinical case: a patient missing five teeth in the aesthetic zone, tracked from CBCT and wax-up through titanium mesh placement, secondary implant surgery, and final restoration at three and six months.

For clinicians, the real benefit of sitting through this lecture is access to a complete, evidence-based workflow rather than isolated tips. Professor Cai backs nearly every design rule with millimeter-level specifications and citations to peer-reviewed literature, so viewers come away with concrete numbers they can apply directly in treatment planning software. The Q&A segment adds further practical value, addressing real-world complications like early mesh exposure, tension-free suturing, and how to judge whether exposed tissue signals failure or just a cosmetic non-issue. Altogether, the presentation functions less like a general overview and more like a structured protocol from an internationally recognized specialist at one of China's oldest dental institutions, making it especially useful for practitioners looking to reduce resorption and improve aesthetic outcomes in multi-tooth implant cases.