Yellow Line is a cloud platform that manages the entire orthodontic aligner treatment lifecycle. Doctors submit cases, the clinical team evaluates and plans treatments, and production oversees manufacturing and delivery.
The system integrates EHR workflows, encrypted messaging, and treatment planning into a unified process, covering case management, prescription creation, patient records, approval workflows, production, scheduling, billing, and shipping. The platform is designed to meet HIPAA and GDPR requirements.
A clinical workflow that extends over years, spans multiple countries, and involves numerous components.
Orthodontic aligner treatment is a clinical process that may last several years for each patient. The treating doctor submits the patient's case with 3D intraoral scans, X-rays, and clinical photos. The clinical team reviews the submission, creates a virtual 3D treatment plan, and presents it for review. The doctor can approve the plan, request modifications, or propose an alternative approach. Once approved, aligners are manufactured in batches, quality-checked, and shipped to the clinic. The doctor may later request refinements or retainers based on the patient's progress.
General-purpose healthcare software is not equipped to manage these specialized treatment workflows. Managing medical data is particularly challenging, as 3D scans can be several gigabytes each and all data must comply with strict HIPAA and GDPR requirements. Communication between doctors and the clinical team requires structured state management and a dedicated channel for sharing feedback, images, and case-specific discussions. Production tracking must link digital treatment plans to physical steps such as 3D printing, thermoforming, trimming, and quality inspection. Additionally, because Yellow Line operates internationally, the platform must accommodate country specific VAT rules and tax reporting, payment methods, and invoicing formats.
The entire treatment lifecycle is managed within a single platform, from case submission to final aligner delivery and subsequent refinements. The platform serves two distinct user groups: treating doctors, who require a straightforward way to submit cases and monitor progress, and the Yellow Line internal team, responsible for evaluation, planning, production, and shipping. Automation operates in the background to maintain workflow momentum, reconcile payments, and provide timely notifications without manual intervention.
Doctor and back-office portals aligned through a single workflow, from clinical input to production and fulfillment.
The platform features two main portals and supporting background services. The treating doctor portal enables dentists and orthodontists to manage their patients by uploading 3D intraoral scans, X-rays, and clinical information directly to the platform. Doctors can track each case through evaluation, planning, and production. Upon creation of a treatment plan, they may approve, reject, or provide clinical feedback. Each case includes a dedicated communication channel for collaboration between the doctor and the Yellow Line team. The portal also manages notifications, account settings, invoicing, billing, and shipping addresses for multiple clinic locations.
The internal back office serves the Yellow Line clinical and production staff. Clinicians review incoming cases, create treatment plans, and manage the approval process with doctors. Once a plan is approved and payment is received, the production team oversees preparation, 3D printing, assembly, quality checks, packaging, and courier dispatch. The back office also manages financial operations, including payment processing, invoicing, client-specific pricing, and automated accounting and tax reporting.
Automation ensures a continuous workflow in the background. Confirmed payments automatically trigger production queues. When a batch ships, doctors receive notifications with tracking information. Reminders are sent to doctors for cases needing input and to staff for pending actions or approaching deadlines. Payment reconciliation matches incoming transactions to outstanding invoices, all managed through event-driven processing on message queues.
Structured workflows, automated processes, and clear responsibilities across the entire treatment lifecycle.
Each patient case has a clear status from submission onward. Doctors can quickly determine whether a case is awaiting evaluation, ready for plan review, in production, or shipped. The clinical team can immediately identify tasks requiring their attention, reducing missed steps and improving prioritization. Modification requests, upgrades, and refinement cycles follow a structured workflow, eliminating the need for email updates and ensuring case status is always clear.
Once a doctor approves a treatment plan, the system automatically initiates production. This seamless transition enables teams to track each treatment step without manual intervention. Doctors have access to real-time delivery status and shipment tracking, reducing uncertainty and saving time typically spent coordinating between clinical and production teams.
Multiple payment methods allow doctors to pay internationally using regional processors for local markets. Doctors may also prepay using the built-in account balance, providing flexibility and convenience. The platform automates pricing tiers and discount codes across countries, enabling the finance team to save time and reduce manual work.
Invoices are generated as soon as an order is placed. Customer records, invoices, and payment statuses are automatically synchronized with accounting software. VAT for multiple tax jurisdictions is managed without manual intervention. Monthly exports support reporting and reconciliation, eliminating the need for the finance team to re-enter data, cross-check systems, or manually create reports.
Patient data complies with HIPAA and GDPR requirements for storage and transmission. Beyond compliance, the permissions system streamlines daily operations. Production team members see only manufacturing details, not patient medical records. Treating doctors access only their own patients. The system determines data visibility based on user roles, down to the level of individual data fields. Large files, such as 3D scans, are uploaded directly to encrypted storage with strict access control and auditing.
When payment is confirmed, production is queued. When a batch ships, the doctor receives a notification with tracking information. If a case is idle, a reminder is sent. The platform manages payment reconciliation, lifecycle transitions, and file cleanup in the background, allowing the team to focus on delivering exceptional treatments rather than routine tasks.
Multi-tenant isolation, encrypted data, granular access control, and an architecture built to handle growing demand.
Our experience with custom healthcare software development allows us to embed compliance and security directly in the platform’s architecture. Patient medical data, including 3D scans, X-rays, and clinical information, is encrypted at rest and in transit using a structured key hierarchy. PHI and sensitive data are protected by multiple layers of encryption and blind indexing, allowing secure searches without exposing plaintext. The permissions model is granular, with roles determining access to specific sections, actions, and data fields. Clinicians may access full medical records or only metadata, depending on their role. Production operators see only manufacturing specifications, while treating doctors have access only to their own patients. All events are recorded in immutable audit logs.
The platform supports increasing caseloads without requiring architectural changes. Message queues process intensive operations such as file handling, payments, and notifications asynchronously to maintain system performance. Background services scale automatically based on demand. Deployment is managed through a containerized pipeline with automated builds, testing, and consistent environments from development to production.
Data-level multi-tenancy ensures separation of information. Treating doctors can access only their own patient cases. The back-office team has cross-client visibility as needed for clinical evaluation and production. Financial data is similarly isolated: each doctor's pricing, balance, and invoice history remain separate, while the back office maintains a consolidated view for accounting.
If you’re working on a new digital health product or want to strengthen compliance in an existing one, we can help. We design and deliver HIPAA- and GDPR-compliant platforms that protect data and support care at scale.
