Reported Reactions

Devices › Aligner, sequential

Device brand name · Aligner sequential

Byte Day Aligners: medical device reports filed with FDA

6,934 reports name it, 2024–2026. Manufacturer given most often on reports: Straight Smile. Product code NXC.

6,934
device reports naming the brand
0% of all MAUDE reports · about 3,797 a year
1,360
reports, 12 months to August 2026
5,574 in the 12 months before
19.8%
classified as malfunction
14% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

6,934 medical device reports received by FDA name the brand "Byte Day Aligners" (aligner sequential); the manufacturer given most often on reports is Straight Smile; received from September 2024 to August 2026. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

1,360 reports arrived in the 12 months to August 2026, down 76% from 5,574 in the 12 months before. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases. The event types recorded are injury (80.2%) and malfunction (19.8%); across all aligner, sequential reports (product code NXC) death is recorded in 0% and malfunction in 14%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are patient-device incompatibility (62.2%), sharp edges (35.7%) and device appears to trigger rejection (16.6%). The patient problems coded most often are deformity/ disfigurement, laceration(s) and tooth fracture. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Reports by month, five years

01,1352,270Sep 2021: 0Oct 2021: 0Nov 2021: 0Dec 2021: 02022Jan 2022: 0Feb 2022: 0Mar 2022: 0Apr 2022: 0May 2022: 0Jun 2022: 0Jul 2022: 0Aug 2022: 0Sep 2022: 0Oct 2022: 0Nov 2022: 0Dec 2022: 02023Jan 2023: 0Feb 2023: 0Mar 2023: 0Apr 2023: 0May 2023: 0Jun 2023: 0Jul 2023: 0Aug 2023: 0Sep 2023: 0Oct 2023: 0Nov 2023: 0Dec 2023: 02024Jan 2024: 0Feb 2024: 0Mar 2024: 0Apr 2024: 0May 2024: 0Jun 2024: 0Jul 2024: 0Aug 2024: 0Sep 2024: 177Oct 2024: 522Nov 2024: 2,270Dec 2024: 1,0042025Jan 2025: 557Feb 2025: 237Mar 2025: 257Apr 2025: 124May 2025: 158Jun 2025: 115Jul 2025: 64Aug 2025: 89Sep 2025: 28Oct 2025: 40Nov 2025: 37Dec 2025: 572026Jan 2026: 51Feb 2026: 44Mar 2026: 1,034Apr 2026: 26May 2026: 17Jun 2026: 6Jul 2026: 16Aug 2026: 4

Reports by the month FDA received them. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases.

By year received

01,9873,9732024: 3,97320242025: 1,76320252026: 1,1982026

Event type and report source

Event type, as classified on the report

Death0%0
Injury80.2%5,560
Malfunction19.8%1,374
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%6,934
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 18,532 reports carrying product code NXC. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Patient-device incompatibilitythe device did not suit the patient4,31062.2%54.1%
Sharp edges2,47735.7%24.2%
Device appears to trigger rejection1,15216.6%11.5%
Defective devicethe device was defective99114.3%9.1%
Structural problem2053%2.3%
Lack of effect1862.7%2.3%
Unintended movement1662.4%2.1%
Inadequacy of device shape and/or size1462.1%6.3%
Crackthe device cracked460.7%0.4%
Breakthe device broke250.4%0.3%
Pressure problem230.3%0.2%
Fitting problem120.2%0.2%
Patient device interaction problem80.1%0.8%
Failure to osseointegrate30%0%
Material fragmentation30%0%
Material integrity problema problem with the device material20%0%
Therapeutic or diagnostic output failure20%0.1%
Biocompatibility10%0.1%
Contamination10%0%
Cross reactivity10%0%

FDA's device problem codes as entered on the report; one report can carry several. Generic codes such as "no apparent adverse event" are left out.

Patient problems coded

Patient problem (FDA code)ReportsShare
Deformity/ disfigurement3,28847.4%
Laceration(s)2,44335.2%
Tooth fracture1,89927.4%
Hypersensitivity/allergic reaction1,12816.3%
Tooth loss1,08215.6%
Necrosisdeath of tissue1,07415.5%
Swelling/ edema1,02114.7%
Abscessa collection of pus99514.3%
Painpain, site not specified85612.3%
Tissue breakdown5377.7%
Discomfortdiscomfort2804%
Sensitivity of teeth2483.6%
Loss of range of motion1942.8%
Bacterial infectiona bacterial infection1872.7%
Inflammationinflammation1261.8%

Patient problem codes are present mainly in reports filed since 2019 and are often blank.

In context

MeasureByte Day AlignersProduct code NXCAll MAUDE reports
Reports6,93418,53226,136,888
Share of that pool—37.4%0%
Classified as death, per 1,000 reports009
Classified as injury80.2%85.4%36.2%
Classified as malfunction19.8%14%62.3%
Filed by the manufacturer100%98%94.9%

Shares are of reports, not of devices in use. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Other brands with product code NXC

BrandReportsLatest 12 monthsClassified as death
Byte Night Aligners6,8031,2020%
Smiledirectclub Aligner System1,52700.1%
Byte Day Aligner72700%
Byte Night Aligner71100%
Invisalign System53400%
Nontemplate Aligner Arch188550%
Invisalign System - Comprehensive1811220%
Byte Retainer1,5408300%

Ordered by report count for navigation only. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA also states that "common products may have a higher number of adverse events due to the higher total number of people using the product."

Questions about Byte Day Aligners reports

How many FDA reports name Byte Day Aligners?

6,934 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 1,360 in the latest 12 months.

What kinds of events are reported?

injury (80.2%) and malfunction (19.8%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

patient-device incompatibility (62.2%), sharp edges (35.7%), device appears to trigger rejection (16.6%), defective device (14.3%) and structural problem (3%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (100%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that Byte Day Aligners was at fault?

No. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA adds that "a causal relationship cannot be established between product and reactions listed in a report."

How do I report a problem with a medical device?

Through FDA MedWatch (Form FDA 3500 for health professionals and consumers), or to the manufacturer. See the guide on how to report.

Where this comes from. Counts are built from the openFDA Device Adverse Event (MAUDE) bulk export released 28 Sep 2026, which holds reports FDA received through 31 Aug 2026. Brand, generic and manufacturer names are as written on the reports; product code names come from FDA's device classification. A report counts here when any device it lists carries this brand name after punctuation and capitalisation are normalised. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.