# What can MARPE change? Adult expansion guide Adult palate expansion MARPE means miniscrew\-assisted rapid palatal expansion. It uses small anchoring screws in the palate to help an appliance apply expansion force to a narrow upper jaw. That width goal differs from arranging teeth or addressing a different relationship between the upper and lower jaws. SMILE\-FX® offers MARPE within doctor\-led, digitally driven comprehensive orthodontic care. Read the explanation, follow a completed fictional example, then choose the part of your own plan to discuss. ![Young adult woman smiling while seated indoors.](/assets/adult-portrait.webp) SMILE\-FX® · Doctor\-led orthodontic care in Miramar, Florida Board\-certified orthodontists see every SMILE\-FX® patient, including at follow\-up visits. The Miramar practice offers full\-service orthodontics with a digitally driven clear\-aligner focus. Three next parts of your plan ## Understand your assessment, progress and continuing care [How are my expansion options assessed?](/your-expansion-evaluation-and-options) See what the finding, supporting tissues, records and goals each contribute to a recommendation. [What should I understand about risks and progress?](/risks-progress-and-other-options) Connect possible tooth and tissue changes with clinical review, an unresolved width goal and other\-option discussions. [How does expansion fit with my teeth and bite plan?](/expansion-and-your-orthodontic-plan) Understand what remains for tooth movement, stabilization, review, retention and individually confirmed treatment scope. ## Start with the width goal The palate is the roof of the mouth. In MARPE, the small palatal screws provide anchorage for expansion force. The intended change concerns the upper jaw's side\-to\-side width; the clinician assesses how much skeletal and tooth\-related change actually occurs. An appliance name describes a method. A useful plan also explains the finding it is intended to address. The word rapid is part of MARPE's name, rather than a promised date for completing all orthodontic treatment. Source: [Efficacy of Miniscrew\-Assisted Rapid Palatal Expansion \(MARPE\) in late adolescents and adults: a systematic review and meta\-analysis](https://academic.oup.com/ejo/article/43/3/313/6244623) ## Width, tooth position and jaw relationship are different goals These goals can belong in one connected plan. Understanding each contribution helps you see why completing an expansion goal does not automatically mean the teeth and bite are finished. **Three things an orthodontic explanation may address** | Goal | What it concerns | What still needs its own explanation | | --- | --- | --- | | Upper\-jaw width | The side\-to\-side width of the upper jaw. | Why expansion is being considered and how the clinician will assess its contribution. | | Tooth position | The arrangement and position of individual teeth. | The planned tooth movement with braces, aligners or another individually selected approach. | | A different jaw relationship | How the upper and lower jaws relate to one another. | Whether that separate relationship needs another assessment or a coordinated treatment plan. | Source: [Efficacy of Miniscrew\-Assisted Rapid Palatal Expansion \(MARPE\) in late adolescents and adults: a systematic review and meta\-analysis](https://academic.oup.com/ejo/article/43/3/313/6244623) Source: [Diagnostic Assessment of Periodontal and Dentoalveolar Complications Following Mini\-Screw\-Assisted Rapid Palatal Expansion in Adults and Late Adolescents: A Systematic Review](https://www.mdpi.com/2075-4418/16/2/352) ## Discuss the goals with a responsible orthodontist SMILE\-FX® offers MARPE as part of comprehensive orthodontic care. Its board\-certified orthodontists see every patient, including follow\-ups. That gives the width assessment, progress discussion and continuing tooth\-movement plan a clinical point of responsibility. The practice's digital planning and smile previews help make proposed goals easier to discuss. Imaging is used when clinically indicated. Full\-service care, with a digitally driven clear\-aligner focus, lets you discuss the width question alongside the options for arranging teeth. These are practice care arrangements; research about MARPE does not establish a SMILE\-FX® outcome for an individual. Source: [SMILE\-FX® practice information](https://www.smile-fx.com/) Source: [SMILE\-FX® digital care and technology context](https://www.smile-fx.com/cutting-edge-technology/) ## Fictional example: Sam has two goals This is an invented example. Sam's orthodontist has identified a narrow upper jaw, and Sam also wants the front teeth aligned. The orthodontist introduces an evaluation for MARPE to address the width concern and a separate discussion about the tooth movements Sam wants. For Sam, the width finding explains why expansion is being considered. The front\-tooth goal explains why the continuing orthodontic plan still matters. Arranging those teeth and changing upper\-jaw width are connected parts of the conversation, with different purposes. Sam now understands what the proposed evaluation is meant to resolve: whether and how expansion belongs in the individual plan. Sam has not accepted an appliance simply by discussing it. No conclusion about another jaw relationship has been reached, and the separate alignment goal has not been treated as already complete. Source: [Efficacy of Miniscrew\-Assisted Rapid Palatal Expansion \(MARPE\) in late adolescents and adults: a systematic review and meta\-analysis](https://academic.oup.com/ejo/article/43/3/313/6244623) Source: [Diagnostic Assessment of Periodontal and Dentoalveolar Complications Following Mini\-Screw\-Assisted Rapid Palatal Expansion in Adults and Late Adolescents: A Systematic Review](https://www.mdpi.com/2075-4418/16/2/352) ## Research informs the discussion; your assessment makes it personal A 2021 systematic review, searched through November 2020, studied MARPE in selected late\-adolescent and adult groups with a narrow upper jaw. It reported expansion and tooth/supporting\-bone changes, but the certainty of evidence was very low. Its results cannot become your personal likelihood of success. A review published in January 2026, searched through July 2025, examined supporting\-tissue complications. Different assessment methods, definitions and limited follow\-up made the findings difficult to combine. Your anatomy, supporting tissues and treatment goals therefore remain central to an individual explanation of benefits, limitations and alternatives. Source: [Efficacy of Miniscrew\-Assisted Rapid Palatal Expansion \(MARPE\) in late adolescents and adults: a systematic review and meta\-analysis](https://academic.oup.com/ejo/article/43/3/313/6244623) Source: [Diagnostic Assessment of Periodontal and Dentoalveolar Complications Following Mini\-Screw\-Assisted Rapid Palatal Expansion in Adults and Late Adolescents: A Systematic Review](https://www.mdpi.com/2075-4418/16/2/352) ## Choose the part of the plan you want to understand The evaluation chapter explains what the width finding, anatomy and supporting tissues contribute to a recommendation. The progress chapter explains possible tooth/tissue changes and what an unfinished width goal means. The continuing\-plan chapter connects expansion with tooth movement, review and retention. For a child's appliance explanation, the existing children's guide covers expansion versus alignment and the words used to describe an expander. Those child\-focused lessons have their own context; they do not decide adult MARPE suitability. - [Children's guide: upper\-jaw expansion and tooth alignment](https://kidsbracesmiramar.com/upper-jaw-expansion-and-tooth-alignment) - [Children's guide: reading expander descriptions](https://kidsbracesmiramar.com/reading-expander-descriptions) ## Keep exploring - [Understand your expansion evaluation and options](/your-expansion-evaluation-and-options) - [Understand risks, progress and another\-option discussions](/risks-progress-and-other-options) - [Connect expansion with your continuing orthodontic plan](/expansion-and-your-orthodontic-plan) [Visit details](/visit) ## Your individual next step Discuss adult expansion and your orthodontic plan [Request a free in-person consultation](https://www.smile-fx.com/lp/free-consult/?utm_source=adult-marpe-expansion&utm_medium=microsite&utm_campaign=smile-fx-guides) Opens the existing SMILE\-FX® request for a free in\-person orthodontic consultation in Miramar. The team confirms appointment and scope. [Call (954) 824-9707](tel:+19548249707) Adult palate expansion & MARPE \| SMILE\-FX® A SMILE\-FX® educational guide to adult upper\-jaw expansion within comprehensive orthodontic care. Already receiving care? Use your treating team's established contact route and individual directions for a current appliance or treatment\-plan concern. [About this guide & sources](/about-this-guide) · [Privacy](/privacy)