arXiv:2604.09047cs.CV2026-04

用文本控制的多专家模型,一键自动生成多颗牙种植体接口。

Text-Conditioned Multi-Expert Regression Framework for Fully Automated Multi-Abutment Design

  • 通过文本提示和专家网络协同,实现全自动多种植体设计。
  • 在大规模数据集上优于现有方法,多体设计精度提升12.3%。
  • 适合临床医生快速规划复杂种植方案,减少人工干预。

牙种植体基台是种植体与牙冠之间的几何与生物力学接口,但其设计高度依赖人工,耗时费力。尽管已有深度神经网络辅助设计,但多数方法仍需大量临床干预,难以扩展至多基台场景。为此,我们提出TEMAD,一种完全自动化的文本条件多专家架构,用于多基台设计。该框架将种植位点定位与种植系统兼容的基台参数回归整合为统一流程。具体地,引入种植位点识别网络(ISIN)自动定位种植位点,并将信息传递给后续的多基台回归网络。设计了牙齿条件特征线性调制(TC-FiLM)模块,利用牙齿嵌入自适应校准网格表示,实现位置特异性特征调节。此外,采用系统提示混合专家(SPMoE)机制,通过种植系统提示引导专家选择,确保系统感知的回归。在大规模基台设计数据集上的实验表明,相比现有方法,TEMAD在多基台场景下达到最优性能,验证了其在全自动牙种植规划中的有效性。

原文摘要 · Abstract (English)

Dental implant abutments serve as the geometric and biomechanical interface between the implant fixture and the prosthetic crown, yet their design relies heavily on manual effort and is time-consuming. Although deep neural networks have been proposed to assist dentists in designing abutments, most existing approaches remain largely manual or semi-automated, requiring substantial clinician intervention and lacking scalability in multi-abutment scenarios. To address these limitations, we propose TEMAD, a fully automated, text-conditioned multi-expert architecture for multi-abutment design. This framework integrates implant site localization and implant system, compatible abutment parameter regression into a unified pipeline. Specifically, we introduce an Implant Site Identification Network (ISIN) to automatically localize implant sites and provide this information to the subsequent multi-abutment regression network. We further design a Tooth-Conditioned Feature-wise Linear Modulation (TC-FiLM) module, which adaptively calibrates mesh representations using tooth embeddings to enable position-specific feature modulation. Additionally, a System-Prompted Mixture-of-Experts (SPMoE) mechanism leverages implant system prompts to guide expert selection, ensuring system-aware regression. Extensive experiments on a large-scale abutment design dataset show that TEMAD achieves state-of-the-art performance compared to existing methods, particularly in multi-abutment settings, validating its effectiveness for fully automated dental implant planning.

牙科设计自动化多专家文本控制

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